72947498 has 48 divisors (see below), whose sum is σ = 128509920. Its totient is φ = 30932928.

The previous prime is 72947473. The next prime is 72947503. The reversal of 72947498 is 89474927.

It is an alternating number because its digits alternate between odd and even.

Its product of digits (1016064) is a multiple of the sum of its prime divisors (378).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 237461 + ... + 237767.

It is an arithmetic number, because the mean of its divisors is an integer number (2677290).

Almost surely, 2^72947498 is an apocalyptic number.

72947498 is a deficient number, since it is larger than the sum of its proper divisors (55562422).

72947498 is a wasteful number, since it uses less digits than its factorization.

72947498 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391 (or 378 counting only the distinct ones).

The product of its digits is 1016064, while the sum is 50.

The square root of 72947498 is about 8540.9307455335. The cubic root of 72947498 is about 417.8337021536.

The spelling of 72947498 in words is "seventy-two million, nine hundred forty-seven thousand, four hundred ninety-eight".