97537992 has 16 divisors (see below), whose sum is σ = 243845040. Its totient is φ = 32512656.

The previous prime is 97537987. The next prime is 97538003. The reversal of 97537992 is 29973579.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2032018 + ... + 2032065.

It is an arithmetic number, because the mean of its divisors is an integer number (15240315).

Almost surely, 2^97537992 is an apocalyptic number.

It is an amenable number.

97537992 is an abundant number, since it is smaller than the sum of its proper divisors (146307048).

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

97537992 is a wasteful number, since it uses less digits than its factorization.

97537992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4064092 (or 4064088 counting only the distinct ones).

The product of its digits is 1071630, while the sum is 51.

The square root of 97537992 is about 9876.1324413963. The cubic root of 97537992 is about 460.3179780026.

The spelling of 97537992 in words is "ninety-seven million, five hundred thirty-seven thousand, nine hundred ninety-two".