72890872 has 32 divisors (see below), whose sum is σ = 139557600. Its totient is φ = 35683200.

The previous prime is 72890837. The next prime is 72890879. The reversal of 72890872 is 27809827.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72890879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102454 + ... + 103162.

It is an arithmetic number, because the mean of its divisors is an integer number (4361175).

Almost surely, 2^72890872 is an apocalyptic number.

It is an amenable number.

72890872 is a deficient number, since it is larger than the sum of its proper divisors (66666728).

72890872 is a wasteful number, since it uses less digits than its factorization.

72890872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 967 (or 963 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 43.

The square root of 72890872 is about 8537.6151236748. The cubic root of 72890872 is about 417.7255587324.

The spelling of 72890872 in words is "seventy-two million, eight hundred ninety thousand, eight hundred seventy-two".