89210879 has 4 divisors (see below), whose sum is σ = 89231160. Its totient is φ = 89190600.

The previous prime is 89210851. The next prime is 89210881. The reversal of 89210879 is 97801298.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 89210879 - 2²⁰ = 88162303 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89210809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 464 + ... + 13365.

It is an arithmetic number, because the mean of its divisors is an integer number (22307790).

Almost surely, 2^89210879 is an apocalyptic number.

89210879 is a deficient number, since it is larger than the sum of its proper divisors (20281).

89210879 is a wasteful number, since it uses less digits than its factorization.

89210879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20280.

The product of its (nonzero) digits is 72576, while the sum is 44.

The square root of 89210879 is about 9445.1510840219. The cubic root of 89210879 is about 446.8268609954.

The spelling of 89210879 in words is "eighty-nine million, two hundred ten thousand, eight hundred seventy-nine".