97697475 has 24 divisors (see below), whose sum is σ = 179475120. Its totient is φ = 52104960.

The previous prime is 97697471. The next prime is 97697477. The reversal of 97697475 is 57479679.

It is a happy number.

It is not a de Polignac number, because 97697475 - 2² = 97697471 is a prime.

It is not an unprimeable number, because it can be changed into a prime (97697471) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 71694 + ... + 73043.

It is an arithmetic number, because the mean of its divisors is an integer number (7478130).

Almost surely, 2^97697475 is an apocalyptic number.

97697475 is a deficient number, since it is larger than the sum of its proper divisors (81777645).

97697475 is a wasteful number, since it uses less digits than its factorization.

97697475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144756 (or 144745 counting only the distinct ones).

The product of its digits is 3333960, while the sum is 54.

The square root of 97697475 is about 9884.2033062862. The cubic root of 97697475 is about 460.5687278720.

The spelling of 97697475 in words is "ninety-seven million, six hundred ninety-seven thousand, four hundred seventy-five".