72620970 has 16 divisors (see below), whose sum is σ = 174290400. Its totient is φ = 19365584.

The previous prime is 72620939. The next prime is 72620981. The reversal of 72620970 is 7902627.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1210320 + ... + 1210379.

It is an arithmetic number, because the mean of its divisors is an integer number (10893150).

Almost surely, 2^72620970 is an apocalyptic number.

72620970 is an abundant number, since it is smaller than the sum of its proper divisors (101669430).

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

72620970 is a wasteful number, since it uses less digits than its factorization.

72620970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2420709.

The product of its (nonzero) digits is 10584, while the sum is 33.

The square root of 72620970 is about 8521.7938252459. The cubic root of 72620970 is about 417.2093331025.

The spelling of 72620970 in words is "seventy-two million, six hundred twenty thousand, nine hundred seventy".