99570117 has 8 divisors (see below), whose sum is σ = 134936800. Its totient is φ = 65291760.

The previous prime is 99570113. The next prime is 99570131. The reversal of 99570117 is 71107599.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 99570117 - 2² = 99570113 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99570113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 271867 + ... + 272232.

It is an arithmetic number, because the mean of its divisors is an integer number (16867100).

Almost surely, 2^99570117 is an apocalyptic number.

It is an amenable number.

99570117 is a deficient number, since it is larger than the sum of its proper divisors (35366683).

99570117 is a wasteful number, since it uses less digits than its factorization.

99570117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 544163.

The product of its (nonzero) digits is 19845, while the sum is 39.

The square root of 99570117 is about 9978.4827002907. The cubic root of 99570117 is about 463.4928146313.

The spelling of 99570117 in words is "ninety-nine million, five hundred seventy thousand, one hundred seventeen".