97472691 has 12 divisors (see below), whose sum is σ = 141381240. Its totient is φ = 64710720.

The previous prime is 97472677. The next prime is 97472719. The reversal of 97472691 is 19627479.

97472691 is a `hidden beast` number, since 97 + 472 + 6 + 91 = 666.

It is not a de Polignac number, because 97472691 - 2¹⁹ = 96948403 is a prime.

It is not an unprimeable number, because it can be changed into a prime (97472651) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20301 + ... + 24638.

It is an arithmetic number, because the mean of its divisors is an integer number (11781770).

Almost surely, 2^97472691 is an apocalyptic number.

97472691 is a deficient number, since it is larger than the sum of its proper divisors (43908549).

97472691 is a wasteful number, since it uses less digits than its factorization.

97472691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45186 (or 45183 counting only the distinct ones).

The product of its digits is 190512, while the sum is 45.

The square root of 97472691 is about 9872.8258872523. The cubic root of 97472691 is about 460.2152285190.

The spelling of 97472691 in words is "ninety-seven million, four hundred seventy-two thousand, six hundred ninety-one".