99315599 has 4 divisors (see below), whose sum is σ = 102519360. Its totient is φ = 96111840.

The previous prime is 99315583. The next prime is 99315611. The reversal of 99315599 is 99551399.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99551399 = 709 ⋅140411.

It is a cyclic number.

It is not a de Polignac number, because 99315599 - 2⁴ = 99315583 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 (99315529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1601834 + ... + 1601895.

It is an arithmetic number, because the mean of its divisors is an integer number (25629840).

Almost surely, 2^99315599 is an apocalyptic number.

99315599 is a deficient number, since it is larger than the sum of its proper divisors (3203761).

99315599 is a wasteful number, since it uses less digits than its factorization.

99315599 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3203760.

The product of its digits is 492075, while the sum is 50.

The square root of 99315599 is about 9965.7211981873. The cubic root of 99315599 is about 463.0975557408.

The spelling of 99315599 in words is "ninety-nine million, three hundred fifteen thousand, five hundred ninety-nine".