72615004 has 36 divisors (see below), whose sum is σ = 159640432. Its totient is φ = 28290240.

The previous prime is 72614999. The next prime is 72615029. The reversal of 72615004 is 40051627.

It is a self number, because there is not a number n which added to its sum of digits gives 72615004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7329 + ... + 14104.

Almost surely, 2^72615004 is an apocalyptic number.

It is an amenable number.

72615004 is an abundant number, since it is smaller than the sum of its proper divisors (87025428).

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

72615004 is a wasteful number, since it uses less digits than its factorization.

72615004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21466 (or 21453 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 72615004 is about 8521.4437743847. The cubic root of 72615004 is about 417.1979078487.

The spelling of 72615004 in words is "seventy-two million, six hundred fifteen thousand, four".