72497892 has 12 divisors (see below), whose sum is σ = 169161776. Its totient is φ = 24165960.

The previous prime is 72497879. The next prime is 72497903. The reversal of 72497892 is 29879427.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3020734 + ... + 3020757.

Almost surely, 2^72497892 is an apocalyptic number.

It is an amenable number.

72497892 is an abundant number, since it is smaller than the sum of its proper divisors (96663884).

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

72497892 is a wasteful number, since it uses less digits than its factorization.

72497892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6041498 (or 6041496 counting only the distinct ones).

The product of its digits is 508032, while the sum is 48.

The square root of 72497892 is about 8514.5693960411. The cubic root of 72497892 is about 416.9735044038.

The spelling of 72497892 in words is "seventy-two million, four hundred ninety-seven thousand, eight hundred ninety-two".