89256489 has 32 divisors (see below), whose sum is σ = 140083200. Its totient is φ = 50528016.

The previous prime is 89256449. The next prime is 89256493. The reversal of 89256489 is 98465298.

It is not a de Polignac number, because 89256489 - 2⁷ = 89256361 is a prime.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (89256449) 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 in 31 ways as a sum of consecutive naturals, for example, 130342 + ... + 131024.

It is an arithmetic number, because the mean of its divisors is an integer number (4377600).

Almost surely, 2^89256489 is an apocalyptic number.

It is an amenable number.

89256489 is a deficient number, since it is larger than the sum of its proper divisors (50826711).

89256489 is a wasteful number, since it uses less digits than its factorization.

89256489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 834 (or 820 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 51.

The square root of 89256489 is about 9447.5652419023. The cubic root of 89256489 is about 446.9029963323.

The spelling of 89256489 in words is "eighty-nine million, two hundred fifty-six thousand, four hundred eighty-nine".