89163690 has 160 divisors (see below), whose sum is σ = 278294400. Its totient is φ = 17888640.

The previous prime is 89163689. The next prime is 89163703. The reversal of 89163690 is 9636198.

It is a super-2 number, since 2×89163690² = 15900327228832200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 3074596 + ... + 3074624.

It is an arithmetic number, because the mean of its divisors is an integer number (1739340).

Almost surely, 2^89163690 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 89163690, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (139147200).

89163690 is an abundant number, since it is smaller than the sum of its proper divisors (189130710).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

89163690 is a wasteful number, since it uses less digits than its factorization.

89163690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90 (or 57 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 42.

The square root of 89163690 is about 9442.6526993213. The cubic root of 89163690 is about 446.7480625654.

The spelling of 89163690 in words is "eighty-nine million, one hundred sixty-three thousand, six hundred ninety".