99318939 has 8 divisors (see below), whose sum is σ = 136991760. Its totient is φ = 63929376.

The previous prime is 99318937. The next prime is 99318941. The reversal of 99318939 is 93981399.

It is an interprime number because it is at equal distance from previous prime (99318937) and next prime (99318941).

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

It is not a de Polignac number, because 99318939 - 2¹ = 99318937 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 99318891 and 99318900.

It is not an unprimeable number, because it can be changed into a prime (99318937) 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, 570712 + ... + 570885.

It is an arithmetic number, because the mean of its divisors is an integer number (17123970).

Almost surely, 2^99318939 is an apocalyptic number.

99318939 is a deficient number, since it is larger than the sum of its proper divisors (37672821).

99318939 is a wasteful number, since it uses less digits than its factorization.

99318939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1141629.

The product of its digits is 472392, while the sum is 51.

The square root of 99318939 is about 9965.8887712035. Note that the first 3 decimals coincide. The cubic root of 99318939 is about 463.1027470317.

The spelling of 99318939 in words is "ninety-nine million, three hundred eighteen thousand, nine hundred thirty-nine".