72954631 has 2 divisors, whose sum is σ = 72954632. Its totient is φ = 72954630.

The previous prime is 72954613. The next prime is 72954641. The reversal of 72954631 is 13645927.

Together with previous prime (72954613) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 72954631 - 2²³ = 64566023 is a prime.

It is a super-2 number, since 2×72954631² = 10644756368692322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72954641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36477315 + 36477316.

It is an arithmetic number, because the mean of its divisors is an integer number (36477316).

Almost surely, 2^72954631 is an apocalyptic number.

72954631 is a deficient number, since it is larger than the sum of its proper divisors (1).

72954631 is an equidigital number, since it uses as much as digits as its factorization.

72954631 is an evil number, because the sum of its binary digits is even.

The product of its digits is 45360, while the sum is 37.

The square root of 72954631 is about 8541.3483127666. The cubic root of 72954631 is about 417.8473206726.

The spelling of 72954631 in words is "seventy-two million, nine hundred fifty-four thousand, six hundred thirty-one".