97898988 has 48 divisors (see below), whose sum is σ = 263862144. Its totient is φ = 27920640.

The previous prime is 97898987. The next prime is 97899031. The reversal of 97898988 is 88989879.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is not an unprimeable number, because it can be changed into a prime (97898981) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19570 + ... + 24057.

It is an arithmetic number, because the mean of its divisors is an integer number (5497128).

Almost surely, 2^97898988 is an apocalyptic number.

It is an amenable number.

97898988 is an abundant number, since it is smaller than the sum of its proper divisors (165963156).

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

97898988 is a wasteful number, since it uses less digits than its factorization.

97898988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43662 (or 43660 counting only the distinct ones).

The product of its digits is 20901888, while the sum is 66.

The square root of 97898988 is about 9894.3917448219. The cubic root of 97898988 is about 460.8851701956.

The spelling of 97898988 in words is "ninety-seven million, eight hundred ninety-eight thousand, nine hundred eighty-eight".