89898984 has 80 divisors (see below), whose sum is σ = 287786400. Its totient is φ = 25684128.

The previous prime is 89898983. The next prime is 89898997. The reversal of 89898984 is 48989898.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (89898983) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 5374 + ... + 14445.

It is an arithmetic number, because the mean of its divisors is an integer number (3597330).

Almost surely, 2^89898984 is an apocalyptic number.

89898984 is a gapful number since it is divisible by the number (84) formed by its first and last digit.

It is an amenable number.

89898984 is an abundant number, since it is smaller than the sum of its proper divisors (197887416).

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

89898984 is a wasteful number, since it uses less digits than its factorization.

89898984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19844 (or 19831 counting only the distinct ones).

The product of its digits is 11943936, while the sum is 63.

The square root of 89898984 is about 9481.5074750801. The cubic root of 89898984 is about 447.9727475982.

The spelling of 89898984 in words is "eighty-nine million, eight hundred ninety-eight thousand, nine hundred eighty-four".