89529917 has 2 divisors, whose sum is σ = 89529918. Its totient is φ = 89529916.

The previous prime is 89529841. The next prime is 89529929. The reversal of 89529917 is 71992598.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 62552281 + 26977636 = 7909^2 + 5194^2 .

It is a cyclic number.

It is not a de Polignac number, because 89529917 - 2¹⁴ = 89513533 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89529967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44764958 + 44764959.

It is an arithmetic number, because the mean of its divisors is an integer number (44764959).

Almost surely, 2^89529917 is an apocalyptic number.

It is an amenable number.

89529917 is a deficient number, since it is larger than the sum of its proper divisors (1).

89529917 is an equidigital number, since it uses as much as digits as its factorization.

89529917 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 408240, while the sum is 50.

The square root of 89529917 is about 9462.0249946827. The cubic root of 89529917 is about 447.3588781314.

The spelling of 89529917 in words is "eighty-nine million, five hundred twenty-nine thousand, nine hundred seventeen".