89579489 has 2 divisors, whose sum is σ = 89579490. Its totient is φ = 89579488.

The previous prime is 89579461. The next prime is 89579527. The reversal of 89579489 is 98497598.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 46348864 + 43230625 = 6808^2 + 6575^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-89579489 is a prime.

It is a super-2 number, since 2×89579489² = 16048969699002242, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (89579389) 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, 44789744 + 44789745.

It is an arithmetic number, because the mean of its divisors is an integer number (44789745).

Almost surely, 2^89579489 is an apocalyptic number.

It is an amenable number.

89579489 is a deficient number, since it is larger than the sum of its proper divisors (1).

89579489 is an equidigital number, since it uses as much as digits as its factorization.

89579489 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6531840, while the sum is 59.

The square root of 89579489 is about 9464.6441560156. The cubic root of 89579489 is about 447.4414292433.

The spelling of 89579489 in words is "eighty-nine million, five hundred seventy-nine thousand, four hundred eighty-nine".