70943472 has 80 divisors (see below), whose sum is σ = 205854880. Its totient is φ = 23390208.

The previous prime is 70943471. The next prime is 70943479. The reversal of 70943472 is 27434907.

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

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70943471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41058 + ... + 42750.

It is an arithmetic number, because the mean of its divisors is an integer number (2573186).

Almost surely, 2^70943472 is an apocalyptic number.

70943472 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70943472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102927440).

70943472 is an abundant number, since it is smaller than the sum of its proper divisors (134911408).

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

70943472 is a wasteful number, since it uses less digits than its factorization.

70943472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1807 (or 1795 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 36.

The square root of 70943472 is about 8422.7947855804. The cubic root of 70943472 is about 413.9718527387.

The spelling of 70943472 in words is "seventy million, nine hundred forty-three thousand, four hundred seventy-two".