72637433 has 16 divisors (see below), whose sum is σ = 82199040. Its totient is φ = 63590400.

The previous prime is 72637429. The next prime is 72637441. The reversal of 72637433 is 33473627.

It is a cyclic number.

It is not a de Polignac number, because 72637433 - 2² = 72637429 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 72637393 and 72637402.

It is not an unprimeable number, because it can be changed into a prime (72637403) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94073 + ... + 94841.

It is an arithmetic number, because the mean of its divisors is an integer number (5137440).

Almost surely, 2^72637433 is an apocalyptic number.

It is an amenable number.

72637433 is a deficient number, since it is larger than the sum of its proper divisors (9561607).

72637433 is a wasteful number, since it uses less digits than its factorization.

72637433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1088.

The product of its digits is 63504, while the sum is 35.

The square root of 72637433 is about 8522.7597056353. The cubic root of 72637433 is about 417.2408575060.

The spelling of 72637433 in words is "seventy-two million, six hundred thirty-seven thousand, four hundred thirty-three".