816716492 has 12 divisors (see below), whose sum is σ = 1434306216. Its totient is φ = 406914720.

The previous prime is 816716471. The next prime is 816716609. The reversal of 816716492 is 294617618.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 359609 + ... + 361872.

It is an arithmetic number, because the mean of its divisors is an integer number (119525518).

Almost surely, 2^816716492 is an apocalyptic number.

It is an amenable number.

816716492 is a deficient number, since it is larger than the sum of its proper divisors (617589724).

816716492 is a wasteful number, since it uses less digits than its factorization.

816716492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 721768 (or 721766 counting only the distinct ones).

The product of its digits is 145152, while the sum is 44.

The square root of 816716492 is about 28578.2520809094. The cubic root of 816716492 is about 934.7391694306.

The spelling of 816716492 in words is "eight hundred sixteen million, seven hundred sixteen thousand, four hundred ninety-two".