99717375 has 32 divisors (see below), whose sum is σ = 168779520. Its totient is φ = 52269600.

The previous prime is 99717367. The next prime is 99717379. The reversal of 99717375 is 57371799.

It is not a de Polignac number, because 99717375 - 2³ = 99717367 is a prime.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99717379) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 19872 + ... + 24378.

It is an arithmetic number, because the mean of its divisors is an integer number (5274360).

Almost surely, 2^99717375 is an apocalyptic number.

99717375 is a deficient number, since it is larger than the sum of its proper divisors (69062145).

99717375 is a wasteful number, since it uses less digits than its factorization.

99717375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4584 (or 4574 counting only the distinct ones).

The product of its digits is 416745, while the sum is 48.

The square root of 99717375 is about 9985.8587512542. The cubic root of 99717375 is about 463.7211944144.

The spelling of 99717375 in words is "ninety-nine million, seven hundred seventeen thousand, three hundred seventy-five".