97192220 has 48 divisors (see below), whose sum is σ = 215913600. Its totient is φ = 36648000.

The previous prime is 97192219. The next prime is 97192231. The reversal of 97192220 is 2229179.

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, 94871 + ... + 95889.

It is an arithmetic number, because the mean of its divisors is an integer number (4498200).

Almost surely, 2^97192220 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 97192220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107956800).

97192220 is an abundant number, since it is smaller than the sum of its proper divisors (118721380).

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

97192220 is a wasteful number, since it uses less digits than its factorization.

97192220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1298 (or 1296 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 32.

The square root of 97192220 is about 9858.6114640957. The cubic root of 97192220 is about 459.7733918508.

The spelling of 97192220 in words is "ninety-seven million, one hundred ninety-two thousand, two hundred twenty".