97172575 has 12 divisors (see below), whose sum is σ = 120618520. Its totient is φ = 77657760.

The previous prime is 97172531. The next prime is 97172597. The reversal of 97172575 is 57527179.

It is not a de Polignac number, because 97172575 - 2¹¹ = 97170527 is a prime.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 39481 + ... + 41869.

Almost surely, 2^97172575 is an apocalyptic number.

97172575 is a deficient number, since it is larger than the sum of its proper divisors (23445945).

97172575 is a wasteful number, since it uses less digits than its factorization.

97172575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4026 (or 4021 counting only the distinct ones).

The product of its digits is 154350, while the sum is 43.

The square root of 97172575 is about 9857.6150766806. The cubic root of 97172575 is about 459.7424124957.

The spelling of 97172575 in words is "ninety-seven million, one hundred seventy-two thousand, five hundred seventy-five".