72747498 has 8 divisors (see below), whose sum is σ = 145495008. Its totient is φ = 24249164.

The previous prime is 72747473. The next prime is 72747503. The reversal of 72747498 is 89474727.

It is a sphenic number, since it is the product of 3 distinct primes.

72747498 is an admirable number.

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

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, 6062286 + ... + 6062297.

It is an arithmetic number, because the mean of its divisors is an integer number (18186876).

Almost surely, 2^72747498 is an apocalyptic number.

72747498 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

72747498 is a wasteful number, since it uses less digits than its factorization.

72747498 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12124588.

The product of its digits is 790272, while the sum is 48.

The square root of 72747498 is about 8529.2143835174. The cubic root of 72747498 is about 417.4514947174.

The spelling of 72747498 in words is "seventy-two million, seven hundred forty-seven thousand, four hundred ninety-eight".