89433689 has 2 divisors, whose sum is σ = 89433690. Its totient is φ = 89433688.

The previous prime is 89433671. The next prime is 89433727. The reversal of 89433689 is 98633498.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 71961289 + 17472400 = 8483^2 + 4180^2 .

It is a cyclic number.

It is not a de Polignac number, because 89433689 - 2²⁴ = 72656473 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (89433629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44716844 + 44716845.

It is an arithmetic number, because the mean of its divisors is an integer number (44716845).

Almost surely, 2^89433689 is an apocalyptic number.

It is an amenable number.

89433689 is a deficient number, since it is larger than the sum of its proper divisors (1).

89433689 is an equidigital number, since it uses as much as digits as its factorization.

89433689 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1119744, while the sum is 50.

The square root of 89433689 is about 9456.9386695696. The cubic root of 89433689 is about 447.1985448268.

The spelling of 89433689 in words is "eighty-nine million, four hundred thirty-three thousand, six hundred eighty-nine".