99715 has 24 divisors (see below), whose sum is σ = 155952. Its totient is φ = 60480.

The previous prime is 99713. The next prime is 99719. The reversal of 99715 is 51799.

99715 = T₈₄ + T₈₅ + ... + T₁₀₅.

It is not a de Polignac number, because 99715 - 2¹ = 99713 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2677 + ... + 2713.

It is an arithmetic number, because the mean of its divisors is an integer number (6498).

2⁹⁹⁷¹⁵ is an apocalyptic number.

99715 is a deficient number, since it is larger than the sum of its proper divisors (56237).

99715 is a wasteful number, since it uses less digits than its factorization.

99715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67 (or 60 counting only the distinct ones).

The product of its digits is 2835, while the sum is 31.

The square root of 99715 is about 315.7768199219. The cubic root of 99715 is about 46.3717512854.

The spelling of 99715 in words is "ninety-nine thousand, seven hundred fifteen".