72962917 has 2 divisors, whose sum is σ = 72962918. Its totient is φ = 72962916.

The previous prime is 72962909. The next prime is 72962947. The reversal of 72962917 is 71926927.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 72488196 + 474721 = 8514^2 + 689^2 .

It is a cyclic number.

It is not a de Polignac number, because 72962917 - 2³ = 72962909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72962947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36481458 + 36481459.

It is an arithmetic number, because the mean of its divisors is an integer number (36481459).

Almost surely, 2^72962917 is an apocalyptic number.

It is an amenable number.

72962917 is a deficient number, since it is larger than the sum of its proper divisors (1).

72962917 is an equidigital number, since it uses as much as digits as its factorization.

72962917 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 95256, while the sum is 43.

The square root of 72962917 is about 8541.8333512192. The cubic root of 72962917 is about 417.8631394163.

The spelling of 72962917 in words is "seventy-two million, nine hundred sixty-two thousand, nine hundred seventeen".