99315620 has 12 divisors (see below), whose sum is σ = 208562844. Its totient is φ = 39726240.

The previous prime is 99315617. The next prime is 99315631. The reversal of 99315620 is 2651399.

It can be written as a sum of positive squares in 2 ways, for example, as 19998784 + 79316836 = 4472^2 + 8906^2 .

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 3 ways as a sum of consecutive naturals, for example, 2482871 + ... + 2482910.

It is an arithmetic number, because the mean of its divisors is an integer number (17380237).

Almost surely, 2^99315620 is an apocalyptic number.

It is an amenable number.

99315620 is an abundant number, since it is smaller than the sum of its proper divisors (109247224).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

99315620 is a wasteful number, since it uses less digits than its factorization.

99315620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4965790 (or 4965788 counting only the distinct ones).

The product of its (nonzero) digits is 14580, while the sum is 35.

The square root of 99315620 is about 9965.7222517989. The cubic root of 99315620 is about 463.0975883810.

It can be divided in two parts, 9931 and 5620, that added together give a palindrome (15551).

The spelling of 99315620 in words is "ninety-nine million, three hundred fifteen thousand, six hundred twenty".