89970165 has 24 divisors (see below), whose sum is σ = 156199680. Its totient is φ = 47906784.

The previous prime is 89970131. The next prime is 89970193. The reversal of 89970165 is 56107998.

It is not a de Polignac number, because 89970165 - 2⁸ = 89969909 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 89970165.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 36564 + ... + 38946.

It is an arithmetic number, because the mean of its divisors is an integer number (6508320).

Almost surely, 2^89970165 is an apocalyptic number.

It is an amenable number.

89970165 is a deficient number, since it is larger than the sum of its proper divisors (66229515).

89970165 is a wasteful number, since it uses less digits than its factorization.

89970165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3233 (or 3230 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 45.

The square root of 89970165 is about 9485.2604076008. The cubic root of 89970165 is about 448.0909496604.

The spelling of 89970165 in words is "eighty-nine million, nine hundred seventy thousand, one hundred sixty-five".