72904814 has 8 divisors (see below), whose sum is σ = 109396200. Its totient is φ = 36439416.

The previous prime is 72904801. The next prime is 72904829. The reversal of 72904814 is 41840927.

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

It is a super-2 number, since 2×72904814² = 10630223808749192, which contains 22 as substring.

It is a congruent number.

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, 3752 + ... + 12644.

It is an arithmetic number, because the mean of its divisors is an integer number (13674525).

Almost surely, 2^72904814 is an apocalyptic number.

72904814 is a deficient number, since it is larger than the sum of its proper divisors (36491386).

72904814 is a wasteful number, since it uses less digits than its factorization.

72904814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12994.

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 72904814 is about 8538.4315889981. The cubic root of 72904814 is about 417.7521901350.

The spelling of 72904814 in words is "seventy-two million, nine hundred four thousand, eight hundred fourteen".