99630815 has 8 divisors (see below), whose sum is σ = 119670720. Its totient is φ = 79628832.

The previous prime is 99630799. The next prime is 99630823. The reversal of 99630815 is 51803699.

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

It is a cyclic number.

It is not a de Polignac number, because 99630815 - 2⁴ = 99630799 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3335 + ... + 14504.

It is an arithmetic number, because the mean of its divisors is an integer number (14958840).

Almost surely, 2^99630815 is an apocalyptic number.

99630815 is a deficient number, since it is larger than the sum of its proper divisors (20039905).

99630815 is a wasteful number, since it uses less digits than its factorization.

99630815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18961.

The product of its (nonzero) digits is 58320, while the sum is 41.

The square root of 99630815 is about 9981.5236812823. The cubic root of 99630815 is about 463.5869773279.

The spelling of 99630815 in words is "ninety-nine million, six hundred thirty thousand, eight hundred fifteen".