72900688 has 40 divisors (see below), whose sum is σ = 161828928. Its totient is φ = 31164672.

The previous prime is 72900683. The next prime is 72900703. The reversal of 72900688 is 88600927.

It is a self number, because there is not a number n which added to its sum of digits gives 72900688.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72900683) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76020 + ... + 76972.

Almost surely, 2^72900688 is an apocalyptic number.

It is an amenable number.

72900688 is an abundant number, since it is smaller than the sum of its proper divisors (88928240).

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

72900688 is a wasteful number, since it uses less digits than its factorization.

72900688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1651 (or 1645 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 40.

The square root of 72900688 is about 8538.1899721194. The cubic root of 72900688 is about 417.7443091828.

The spelling of 72900688 in words is "seventy-two million, nine hundred thousand, six hundred eighty-eight".