813698216 has 32 divisors (see below), whose sum is σ = 1569456000. Its totient is φ = 395302656.

The previous prime is 813698203. The next prime is 813698227. The reversal of 813698216 is 612896318.

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, 44480 + ... + 60048.

It is an arithmetic number, because the mean of its divisors is an integer number (49045500).

Almost surely, 2^813698216 is an apocalyptic number.

It is an amenable number.

813698216 is a deficient number, since it is larger than the sum of its proper divisors (755757784).

813698216 is a wasteful number, since it uses less digits than its factorization.

813698216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15761 (or 15757 counting only the distinct ones).

The product of its digits is 124416, while the sum is 44.

The square root of 813698216 is about 28525.3959832287. The cubic root of 813698216 is about 933.5862669363.

The spelling of 813698216 in words is "eight hundred thirteen million, six hundred ninety-eight thousand, two hundred sixteen".