99940317 has 4 divisors (see below), whose sum is σ = 133253760. Its totient is φ = 66626876.

The previous prime is 99940303. The next prime is 99940319. The reversal of 99940317 is 71304999.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 99940317 - 2¹⁰ = 99939293 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99940319) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16656717 + ... + 16656722.

It is an arithmetic number, because the mean of its divisors is an integer number (33313440).

Almost surely, 2^99940317 is an apocalyptic number.

It is an amenable number.

99940317 is a deficient number, since it is larger than the sum of its proper divisors (33313443).

99940317 is a wasteful number, since it uses less digits than its factorization.

99940317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33313442.

The product of its (nonzero) digits is 61236, while the sum is 42.

The square root of 99940317 is about 9997.0154046095. The cubic root of 99940317 is about 464.0665236690.

The spelling of 99940317 in words is "ninety-nine million, nine hundred forty thousand, three hundred seventeen".