7931097 has 6 divisors (see below), whose sum is σ = 11456042. Its totient is φ = 5287392.

The previous prime is 7931041. The next prime is 7931101. The reversal of 7931097 is 7901397.

It can be written as a sum of positive squares in only one way, i.e., 7733961 + 197136 = 2781^2 + 444^2 .

It is not a de Polignac number, because 7931097 - 2⁸ = 7930841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7931017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 440608 + ... + 440625.

Almost surely, 2^7931097 is an apocalyptic number.

It is an amenable number.

7931097 is a deficient number, since it is larger than the sum of its proper divisors (3524945).

7931097 is a wasteful number, since it uses less digits than its factorization.

7931097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 881239 (or 881236 counting only the distinct ones).

The product of its (nonzero) digits is 11907, while the sum is 36.

The square root of 7931097 is about 2816.2203393911. The cubic root of 7931097 is about 199.4241519195.

The spelling of 7931097 in words is "seven million, nine hundred thirty-one thousand, ninety-seven".