89168979 has 8 divisors (see below), whose sum is σ = 119193040. Its totient is φ = 59295456.

The previous prime is 89168969. The next prime is 89169013. The reversal of 89168979 is 97986198.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 89168979 - 2¹² = 89164883 is a prime.

It is a super-2 number, since 2×89168979² = 15902213631804882, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89168929) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36244 + ... + 38625.

It is an arithmetic number, because the mean of its divisors is an integer number (14899130).

Almost surely, 2^89168979 is an apocalyptic number.

89168979 is a deficient number, since it is larger than the sum of its proper divisors (30024061).

89168979 is a wasteful number, since it uses less digits than its factorization.

89168979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75269.

The product of its digits is 1959552, while the sum is 57.

The square root of 89168979 is about 9442.9327541818. The cubic root of 89168979 is about 446.7568957717.

The spelling of 89168979 in words is "eighty-nine million, one hundred sixty-eight thousand, nine hundred seventy-nine".