72897356 has 48 divisors (see below), whose sum is σ = 149083200. Its totient is φ = 30547200.

The previous prime is 72897287. The next prime is 72897361. The reversal of 72897356 is 65379827.

Its product of digits (635040) is a multiple of the sum of its prime divisors (432).

It is a self number, because there is not a number n which added to its sum of digits gives 72897356.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 421286 + ... + 421458.

It is an arithmetic number, because the mean of its divisors is an integer number (3105900).

Almost surely, 2^72897356 is an apocalyptic number.

It is an amenable number.

72897356 is an abundant number, since it is smaller than the sum of its proper divisors (76185844).

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

72897356 is a wasteful number, since it uses less digits than its factorization.

72897356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434 (or 432 counting only the distinct ones).

The product of its digits is 635040, while the sum is 47.

The square root of 72897356 is about 8537.9948465667. The cubic root of 72897356 is about 417.7379446098.

The spelling of 72897356 in words is "seventy-two million, eight hundred ninety-seven thousand, three hundred fifty-six".