72247704 has 32 divisors (see below), whose sum is σ = 181016640. Its totient is φ = 24029600.

The previous prime is 72247691. The next prime is 72247711. The reversal of 72247704 is 40774227.

It is a congruent number.

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, 8719 + ... + 14849.

It is an arithmetic number, because the mean of its divisors is an integer number (5656770).

Almost surely, 2^72247704 is an apocalyptic number.

It is an amenable number.

72247704 is an abundant number, since it is smaller than the sum of its proper divisors (108768936).

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

72247704 is a wasteful number, since it uses less digits than its factorization.

72247704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6631 (or 6627 counting only the distinct ones).

The product of its (nonzero) digits is 21952, while the sum is 33.

The square root of 72247704 is about 8499.8649401035. The cubic root of 72247704 is about 416.4932973312.

The spelling of 72247704 in words is "seventy-two million, two hundred forty-seven thousand, seven hundred four".