89218859 has 2 divisors, whose sum is σ = 89218860. Its totient is φ = 89218858.

The previous prime is 89218853. The next prime is 89218901. The reversal of 89218859 is 95881298.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 89218859 - 2⁸ = 89218603 is a prime.

It is a super-4 number, since 4×89218859⁴ (a number of 33 digits) contains 4444 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (89218853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44609429 + 44609430.

It is an arithmetic number, because the mean of its divisors is an integer number (44609430).

Almost surely, 2^89218859 is an apocalyptic number.

89218859 is a deficient number, since it is larger than the sum of its proper divisors (1).

89218859 is an equidigital number, since it uses as much as digits as its factorization.

89218859 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 414720, while the sum is 50.

The square root of 89218859 is about 9445.5735135565. The cubic root of 89218859 is about 446.8401836308.

The spelling of 89218859 in words is "eighty-nine million, two hundred eighteen thousand, eight hundred fifty-nine".