65694072 has 64 divisors (see below), whose sum is σ = 174274560. Its totient is φ = 20592000.

The previous prime is 65694071. The next prime is 65694073. The reversal of 65694072 is 27049656.

It is an interprime number because it is at equal distance from previous prime (65694071) and next prime (65694073).

It is a super-2 number, since 2×65694072² = 8631422191882368, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 65694072.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65694071) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32697 + ... + 34647.

It is an arithmetic number, because the mean of its divisors is an integer number (2723040).

Almost surely, 2^65694072 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65694072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87137280).

65694072 is an abundant number, since it is smaller than the sum of its proper divisors (108580488).

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

65694072 is a wasteful number, since it uses less digits than its factorization.

65694072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2044 (or 2040 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 39.

The square root of 65694072 is about 8105.1879682090. The cubic root of 65694072 is about 403.4986264807.

The spelling of 65694072 in words is "sixty-five million, six hundred ninety-four thousand, seventy-two".