97891192 has 32 divisors (see below), whose sum is σ = 220809600. Its totient is φ = 39744864.

The previous prime is 97891147. The next prime is 97891193. The reversal of 97891192 is 29119879.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97891193) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44938 + ... + 47065.

It is an arithmetic number, because the mean of its divisors is an integer number (6900300).

Almost surely, 2^97891192 is an apocalyptic number.

It is an amenable number.

97891192 is an abundant number, since it is smaller than the sum of its proper divisors (122918408).

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

97891192 is a wasteful number, since it uses less digits than its factorization.

97891192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92035 (or 92031 counting only the distinct ones).

The product of its digits is 81648, while the sum is 46.

The square root of 97891192 is about 9893.9977764299. The cubic root of 97891192 is about 460.8729359658.

The spelling of 97891192 in words is "ninety-seven million, eight hundred ninety-one thousand, one hundred ninety-two".