72080923 has 2 divisors, whose sum is σ = 72080924. Its totient is φ = 72080922.

The previous prime is 72080909. The next prime is 72080947. The reversal of 72080923 is 32908027.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 72080923 - 2⁵ = 72080891 is a prime.

It is not a weakly prime, because it can be changed into another prime (72080903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36040461 + 36040462.

It is an arithmetic number, because the mean of its divisors is an integer number (36040462).

Almost surely, 2^72080923 is an apocalyptic number.

72080923 is a deficient number, since it is larger than the sum of its proper divisors (1).

72080923 is an equidigital number, since it uses as much as digits as its factorization.

72080923 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 72080923 is about 8490.0484686485. The cubic root of 72080923 is about 416.1725642401.

The spelling of 72080923 in words is "seventy-two million, eighty thousand, nine hundred twenty-three".