72965530 has 32 divisors (see below), whose sum is σ = 151709760. Its totient is φ = 24971520.

The previous prime is 72965489. The next prime is 72965533. The reversal of 72965530 is 3556927.

It is a self number, because there is not a number n which added to its sum of digits gives 72965530.

It is not an unprimeable number, because it can be changed into a prime (72965533) 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, 17640 + ... + 21379.

It is an arithmetic number, because the mean of its divisors is an integer number (4740930).

Almost surely, 2^72965530 is an apocalyptic number.

72965530 is an abundant number, since it is smaller than the sum of its proper divisors (78744230).

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

72965530 is a wasteful number, since it uses less digits than its factorization.

72965530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39054.

The product of its (nonzero) digits is 56700, while the sum is 37.

The square root of 72965530 is about 8541.9863029626. The cubic root of 72965530 is about 417.8681276276.

The spelling of 72965530 in words is "seventy-two million, nine hundred sixty-five thousand, five hundred thirty".