72804053 has 12 divisors (see below), whose sum is σ = 86129280. Its totient is φ = 61343352.

The previous prime is 72804041. The next prime is 72804077. The reversal of 72804053 is 35040827.

It is a happy number.

It is not a de Polignac number, because 72804053 - 2⁴ = 72804037 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72804023) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9701 + ... + 15482.

It is an arithmetic number, because the mean of its divisors is an integer number (7177440).

Almost surely, 2^72804053 is an apocalyptic number.

It is an amenable number.

72804053 is a deficient number, since it is larger than the sum of its proper divisors (13325227).

72804053 is a wasteful number, since it uses less digits than its factorization.

72804053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25256 (or 25249 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 72804053 is about 8532.5291092384. The cubic root of 72804053 is about 417.5596443885.

The spelling of 72804053 in words is "seventy-two million, eight hundred four thousand, fifty-three".