72870696 has 24 divisors (see below), whose sum is σ = 197358330. Its totient is φ = 24290208.

The previous prime is 72870689. The next prime is 72870697. The reversal of 72870696 is 69607827.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 42068196 + 30802500 = 6486^2 + 5550^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is not an unprimeable number, because it can be changed into a prime (72870697) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 505975 + ... + 506118.

Almost surely, 2^72870696 is an apocalyptic number.

It is an amenable number.

72870696 is an abundant number, since it is smaller than the sum of its proper divisors (124487634).

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

72870696 is a wasteful number, since it uses less digits than its factorization.

72870696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1012105 (or 1012098 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 45.

The square root of 72870696 is about 8536.4334472893. The cubic root of 72870696 is about 417.6870134003.

The spelling of 72870696 in words is "seventy-two million, eight hundred seventy thousand, six hundred ninety-six".