89856879 has 32 divisors (see below), whose sum is σ = 143130624. Its totient is φ = 49062240.

The previous prime is 89856863. The next prime is 89856887. The reversal of 89856879 is 97865898.

It is a happy number.

It is not a de Polignac number, because 89856879 - 2⁴ = 89856863 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89856829) 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 in 31 ways as a sum of consecutive naturals, for example, 53202 + ... + 54864.

It is an arithmetic number, because the mean of its divisors is an integer number (4472832).

Almost surely, 2^89856879 is an apocalyptic number.

89856879 is a deficient number, since it is larger than the sum of its proper divisors (53273745).

89856879 is a wasteful number, since it uses less digits than its factorization.

89856879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1787.

The product of its digits is 8709120, while the sum is 60.

The square root of 89856879 is about 9479.2868402639. The cubic root of 89856879 is about 447.9027993178.

The spelling of 89856879 in words is "eighty-nine million, eight hundred fifty-six thousand, eight hundred seventy-nine".