97109992 has 32 divisors (see below), whose sum is σ = 212025600. Its totient is φ = 40832064.

The previous prime is 97109989. The next prime is 97109993. The reversal of 97109992 is 29990179.

It is not an unprimeable number, because it can be changed into a prime (97109993) 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, 13392 + ... + 19327.

It is an arithmetic number, because the mean of its divisors is an integer number (6625800).

Almost surely, 2^97109992 is an apocalyptic number.

It is an amenable number.

97109992 is an abundant number, since it is smaller than the sum of its proper divisors (114915608).

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

97109992 is a wasteful number, since it uses less digits than its factorization.

97109992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32785 (or 32781 counting only the distinct ones).

The product of its (nonzero) digits is 91854, while the sum is 46.

The square root of 97109992 is about 9854.4402174857. The cubic root of 97109992 is about 459.6436938384.

The spelling of 97109992 in words is "ninety-seven million, one hundred nine thousand, nine hundred ninety-two".