89517690 has 32 divisors (see below), whose sum is σ = 238714560. Its totient is φ = 23871312.

The previous prime is 89517661. The next prime is 89517697. The reversal of 89517690 is 9671598.

It is a super-2 number, since 2×89517690² = 16026833645872200, which contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (89517697) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 165504 + ... + 166043.

It is an arithmetic number, because the mean of its divisors is an integer number (7459830).

Almost surely, 2^89517690 is an apocalyptic number.

89517690 is an abundant number, since it is smaller than the sum of its proper divisors (149196870).

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

89517690 is a wasteful number, since it uses less digits than its factorization.

89517690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331563 (or 331557 counting only the distinct ones).

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

The square root of 89517690 is about 9461.3788635695. The cubic root of 89517690 is about 447.3385121048.

It can be divided in two parts, 8951 and 7690, that added together give a square (16641 = 129²).

The spelling of 89517690 in words is "eighty-nine million, five hundred seventeen thousand, six hundred ninety".