72972498 has 32 divisors (see below), whose sum is σ = 149587200. Its totient is φ = 23723856.

The previous prime is 72972461. The next prime is 72972511. The reversal of 72972498 is 89427927.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax 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 15 ways as a sum of consecutive naturals, for example, 48465 + ... + 49947.

It is an arithmetic number, because the mean of its divisors is an integer number (4674600).

Almost surely, 2^72972498 is an apocalyptic number.

72972498 is an abundant number, since it is smaller than the sum of its proper divisors (76614702).

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

72972498 is a wasteful number, since it uses less digits than its factorization.

72972498 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1686.

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

The square root of 72972498 is about 8542.3941608896. The cubic root of 72972498 is about 417.8814289423.

The spelling of 72972498 in words is "seventy-two million, nine hundred seventy-two thousand, four hundred ninety-eight".