72772870 has 16 divisors (see below), whose sum is σ = 132837408. Its totient is φ = 28698880.

The previous prime is 72772867. The next prime is 72772877. The reversal of 72772870 is 7827727.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72772877) 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, 50539 + ... + 51958.

It is an arithmetic number, because the mean of its divisors is an integer number (8302338).

Almost surely, 2^72772870 is an apocalyptic number.

72772870 is a deficient number, since it is larger than the sum of its proper divisors (60064538).

72772870 is a wasteful number, since it uses less digits than its factorization.

72772870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102575.

The product of its (nonzero) digits is 76832, while the sum is 40.

The square root of 72772870 is about 8530.7016124115. The cubic root of 72772870 is about 417.5000203186.

The spelling of 72772870 in words is "seventy-two million, seven hundred seventy-two thousand, eight hundred seventy".