89520923 has 2 divisors, whose sum is σ = 89520924. Its totient is φ = 89520922.

The previous prime is 89520919. The next prime is 89520961. The reversal of 89520923 is 32902598.

It is an a-pointer prime, because the next prime (89520961) can be obtained adding 89520923 to its sum of digits (38).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 89520923 - 2² = 89520919 is a prime.

It is not a weakly prime, because it can be changed into another prime (89520323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44760461 + 44760462.

It is an arithmetic number, because the mean of its divisors is an integer number (44760462).

Almost surely, 2^89520923 is an apocalyptic number.

89520923 is a deficient number, since it is larger than the sum of its proper divisors (1).

89520923 is an equidigital number, since it uses as much as digits as its factorization.

89520923 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 89520923 is about 9461.5497145024. The cubic root of 89520923 is about 447.3438973644.

The spelling of 89520923 in words is "eighty-nine million, five hundred twenty thousand, nine hundred twenty-three".