72958979 has 2 divisors, whose sum is σ = 72958980. Its totient is φ = 72958978.

The previous prime is 72958957. The next prime is 72958997. The reversal of 72958979 is 97985927.

Together with next prime (72958997) 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 72958979 - 2⁸ = 72958723 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (72948979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36479489 + 36479490.

It is an arithmetic number, because the mean of its divisors is an integer number (36479490).

Almost surely, 2^72958979 is an apocalyptic number.

72958979 is a deficient number, since it is larger than the sum of its proper divisors (1).

72958979 is an equidigital number, since it uses as much as digits as its factorization.

72958979 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2857680, while the sum is 56.

The square root of 72958979 is about 8541.6028355339. The cubic root of 72958979 is about 417.8556215578.

It can be divided in two parts, 72958 and 979, that added together give a palindrome (73937).

The spelling of 72958979 in words is "seventy-two million, nine hundred fifty-eight thousand, nine hundred seventy-nine".