89259889 has 2 divisors, whose sum is σ = 89259890. Its totient is φ = 89259888.

The previous prime is 89259871. The next prime is 89259899. The reversal of 89259889 is 98895298.

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., 86397025 + 2862864 = 9295^2 + 1692^2 .

It is a cyclic number.

It is not a de Polignac number, because 89259889 - 2⁵ = 89259857 is a prime.

It is not a weakly prime, because it can be changed into another prime (89259899) 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, 44629944 + 44629945.

It is an arithmetic number, because the mean of its divisors is an integer number (44629945).

Almost surely, 2^89259889 is an apocalyptic number.

It is an amenable number.

89259889 is a deficient number, since it is larger than the sum of its proper divisors (1).

89259889 is an equidigital number, since it uses as much as digits as its factorization.

89259889 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3732480, while the sum is 58.

The square root of 89259889 is about 9447.7451807296. The cubic root of 89259889 is about 446.9086708064.

The spelling of 89259889 in words is "eighty-nine million, two hundred fifty-nine thousand, eight hundred eighty-nine".