99998715 has 16 divisors (see below), whose sum is σ = 165159936. Its totient is φ = 51612000.

The previous prime is 99998663. The next prime is 99998749. The reversal of 99998715 is 51789999.

It is not a de Polignac number, because 99998715 - 2¹⁰ = 99997691 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 107061 + ... + 107990.

It is an arithmetic number, because the mean of its divisors is an integer number (10322496).

Almost surely, 2^99998715 is an apocalyptic number.

99998715 is a deficient number, since it is larger than the sum of its proper divisors (65161221).

99998715 is a wasteful number, since it uses less digits than its factorization.

99998715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215090.

The product of its digits is 1837080, while the sum is 57.

The square root of 99998715 is about 9999.9357497936. The cubic root of 99998715 is about 464.1568952055.

The spelling of 99998715 in words is "ninety-nine million, nine hundred ninety-eight thousand, seven hundred fifteen".