996858815 has 16 divisors (see below), whose sum is σ = 1225627200. Its totient is φ = 778122240.

The previous prime is 996858803. The next prime is 996858833. The reversal of 996858815 is 518858699.

It is not a de Polignac number, because 996858815 - 2²⁰ = 995810239 is a prime.

It is a congruent number.

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, 19961 + ... + 48909.

It is an arithmetic number, because the mean of its divisors is an integer number (76601700).

Almost surely, 2^996858815 is an apocalyptic number.

996858815 is a deficient number, since it is larger than the sum of its proper divisors (228768385).

996858815 is a wasteful number, since it uses less digits than its factorization.

996858815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29122.

The product of its digits is 6220800, while the sum is 59.

The square root of 996858815 is about 31573.0710416329. The cubic root of 996858815 is about 998.9518400780.

The spelling of 996858815 in words is "nine hundred ninety-six million, eight hundred fifty-eight thousand, eight hundred fifteen".