97999998 has 16 divisors (see below), whose sum is σ = 196112016. Its totient is φ = 32648000.

The previous prime is 97999949. The next prime is 98000027. The reversal of 97999998 is 89999979.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10498 + ... + 17498.

It is an arithmetic number, because the mean of its divisors is an integer number (12257001).

Almost surely, 2^97999998 is an apocalyptic number.

97999998 is an abundant number, since it is smaller than the sum of its proper divisors (98112018).

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

97999998 is a wasteful number, since it uses less digits than its factorization.

97999998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9339.

The product of its digits is 29760696, while the sum is 69.

The square root of 97999998 is about 9899.4948355964. The cubic root of 97999998 is about 461.0436260695.

The spelling of 97999998 in words is "ninety-seven million, nine hundred ninety-nine thousand, nine hundred ninety-eight".