72998192 has 20 divisors (see below), whose sum is σ = 141705216. Its totient is φ = 36429120.

The previous prime is 72998183. The next prime is 72998207. The reversal of 72998192 is 29189927.

It is a happy number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 4817 + ... + 13007.

Almost surely, 2^72998192 is an apocalyptic number.

It is an amenable number.

72998192 is a deficient number, since it is larger than the sum of its proper divisors (68707024).

72998192 is a wasteful number, since it uses less digits than its factorization.

72998192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8756 (or 8750 counting only the distinct ones).

The product of its digits is 163296, while the sum is 47.

The square root of 72998192 is about 8543.8979394653. The cubic root of 72998192 is about 417.9304692693.

The spelling of 72998192 in words is "seventy-two million, nine hundred ninety-eight thousand, one hundred ninety-two".