97691272 has 32 divisors (see below), whose sum is σ = 209664000. Its totient is φ = 41802624.

The previous prime is 97691183. The next prime is 97691273. The reversal of 97691272 is 27219679.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (97691273) 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, 57913 + ... + 59575.

It is an arithmetic number, because the mean of its divisors is an integer number (6552000).

Almost surely, 2^97691272 is an apocalyptic number.

It is an amenable number.

97691272 is an abundant number, since it is smaller than the sum of its proper divisors (111972728).

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

97691272 is a wasteful number, since it uses less digits than its factorization.

97691272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2725 (or 2721 counting only the distinct ones).

The product of its digits is 95256, while the sum is 43.

The square root of 97691272 is about 9883.8895177961. The cubic root of 97691272 is about 460.5589802018.

The spelling of 97691272 in words is "ninety-seven million, six hundred ninety-one thousand, two hundred seventy-two".