89979023 has 2 divisors, whose sum is σ = 89979024. Its totient is φ = 89979022.

The previous prime is 89979017. The next prime is 89979047. The reversal of 89979023 is 32097998.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 89979023 - 2⁴ = 89979007 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89979073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44989511 + 44989512.

It is an arithmetic number, because the mean of its divisors is an integer number (44989512).

Almost surely, 2^89979023 is an apocalyptic number.

89979023 is a deficient number, since it is larger than the sum of its proper divisors (1).

89979023 is an equidigital number, since it uses as much as digits as its factorization.

89979023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 244944, while the sum is 47.

The square root of 89979023 is about 9485.7273311012. The cubic root of 89979023 is about 448.1056547550.

The spelling of 89979023 in words is "eighty-nine million, nine hundred seventy-nine thousand, twenty-three".