97021998590 has 32 divisors (see below), whose sum is σ = 196661606400. Its totient is φ = 34142637600.

The previous prime is 97021998583. The next prime is 97021998629. The reversal of 97021998590 is 9589912079.

It is a congruent 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, 14222690 + ... + 14229509.

It is an arithmetic number, because the mean of its divisors is an integer number (6145675200).

Almost surely, 2^97021998590 is an apocalyptic number.

97021998590 is an abundant number, since it is smaller than the sum of its proper divisors (99639607810).

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

97021998590 is a wasteful number, since it uses less digits than its factorization.

97021998590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28452248.

The product of its (nonzero) digits is 3674160, while the sum is 59.

The spelling of 97021998590 in words is "ninety-seven billion, twenty-one million, nine hundred ninety-eight thousand, five hundred ninety".