72872433 has 8 divisors (see below), whose sum is σ = 107959200. Its totient is φ = 48581604.

The previous prime is 72872431. The next prime is 72872453. The reversal of 72872433 is 33427827.

It is not a de Polignac number, because 72872433 - 2¹ = 72872431 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (72872431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1349463 + ... + 1349516.

It is an arithmetic number, because the mean of its divisors is an integer number (13494900).

Almost surely, 2^72872433 is an apocalyptic number.

It is an amenable number.

72872433 is a deficient number, since it is larger than the sum of its proper divisors (35086767).

72872433 is a wasteful number, since it uses less digits than its factorization.

72872433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2698988 (or 2698982 counting only the distinct ones).

The product of its digits is 56448, while the sum is 36.

The square root of 72872433 is about 8536.5351870651. The cubic root of 72872433 is about 417.6903321398.

The spelling of 72872433 in words is "seventy-two million, eight hundred seventy-two thousand, four hundred thirty-three".