89140985 has 16 divisors (see below), whose sum is σ = 111891456. Its totient is φ = 68046528.

The previous prime is 89140969. The next prime is 89140991. The reversal of 89140985 is 58904198.

It is a cyclic number.

It is not a de Polignac number, because 89140985 - 2⁴ = 89140969 is a prime.

It is a super-2 number, since 2×89140985² = 15892230413540450, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69167 + ... + 70443.

It is an arithmetic number, because the mean of its divisors is an integer number (6993216).

Almost surely, 2^89140985 is an apocalyptic number.

It is an amenable number.

89140985 is a deficient number, since it is larger than the sum of its proper divisors (22750471).

89140985 is a wasteful number, since it uses less digits than its factorization.

89140985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1912.

The product of its (nonzero) digits is 103680, while the sum is 44.

The square root of 89140985 is about 9441.4503652776. The cubic root of 89140985 is about 446.7101387728.

The spelling of 89140985 in words is "eighty-nine million, one hundred forty thousand, nine hundred eighty-five".