816347998 has 16 divisors (see below), whose sum is σ = 1233872640. Its totient is φ = 405069336.

The previous prime is 816347981. The next prime is 816348037. The reversal of 816347998 is 899743618.

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, 143965 + ... + 149527.

It is an arithmetic number, because the mean of its divisors is an integer number (77117040).

Almost surely, 2^816347998 is an apocalyptic number.

816347998 is a deficient number, since it is larger than the sum of its proper divisors (417524642).

816347998 is a wasteful number, since it uses less digits than its factorization.

816347998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6111.

The product of its digits is 2612736, while the sum is 55.

The square root of 816347998 is about 28571.8042482445. The cubic root of 816347998 is about 934.5985667468.

The spelling of 816347998 in words is "eight hundred sixteen million, three hundred forty-seven thousand, nine hundred ninety-eight".