89499940 has 24 divisors (see below), whose sum is σ = 190757952. Its totient is φ = 35265120.

The previous prime is 89499931. The next prime is 89499941. The reversal of 89499940 is 4999498.

It is not an unprimeable number, because it can be changed into a prime (89499941) 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, 32056 + ... + 34735.

It is an arithmetic number, because the mean of its divisors is an integer number (7948248).

Almost surely, 2^89499940 is an apocalyptic number.

It is an amenable number.

89499940 is an abundant number, since it is smaller than the sum of its proper divisors (101258012).

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

89499940 is a wasteful number, since it uses less digits than its factorization.

89499940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66867 (or 66865 counting only the distinct ones).

The product of its (nonzero) digits is 839808, while the sum is 52.

The square root of 89499940 is about 9460.4407931132. The cubic root of 89499940 is about 447.3089433366.

The spelling of 89499940 in words is "eighty-nine million, four hundred ninety-nine thousand, nine hundred forty".