72765023 has 2 divisors, whose sum is σ = 72765024. Its totient is φ = 72765022.

The previous prime is 72765019. The next prime is 72765047. The reversal of 72765023 is 32056727.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 72765023 - 2² = 72765019 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72761023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36382511 + 36382512.

It is an arithmetic number, because the mean of its divisors is an integer number (36382512).

Almost surely, 2^72765023 is an apocalyptic number.

72765023 is a deficient number, since it is larger than the sum of its proper divisors (1).

72765023 is an equidigital number, since it uses as much as digits as its factorization.

72765023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17640, while the sum is 32.

The square root of 72765023 is about 8530.2416730126. The cubic root of 72765023 is about 417.4850136254.

The spelling of 72765023 in words is "seventy-two million, seven hundred sixty-five thousand, twenty-three".