70660836 has 45 divisors (see below), whose sum is σ = 185117779. Its totient is φ = 23503176.

The previous prime is 70660831. The next prime is 70660841. The reversal of 70660836 is 63806607.

It is a happy number.

The square root of 70660836 is 8406.

It is a perfect power (a square), and thus also a powerful number.

It is an interprime number because it is at equal distance from previous prime (70660831) and next prime (70660841).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 70660836.

It is not an unprimeable number, because it can be changed into a prime (70660831) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 151075 + ... + 151541.

Almost surely, 2^70660836 is an apocalyptic number.

70660836 is the 8406-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70660836

70660836 is an abundant number, since it is smaller than the sum of its proper divisors (114456943).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

70660836 is an equidigital number, since it uses as much as digits as its factorization.

70660836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 950 (or 472 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The cubic root of 70660836 is about 413.4213718700.

Multiplying 70660836 by its sum of digits (36), we get a square (2543790096 = 50436²).

70660836 divided by its sum of digits (36) gives a square (1962801 = 1401²).

The spelling of 70660836 in words is "seventy million, six hundred sixty thousand, eight hundred thirty-six".