916807816 has 16 divisors (see below), whose sum is σ = 1758992400. Its totient is φ = 447743184.

The previous prime is 916807811. The next prime is 916807883. The reversal of 916807816 is 618708619.

It is not an unprimeable number, because it can be changed into a prime (916807811) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1332226 + ... + 1332913.

It is an arithmetic number, because the mean of its divisors is an integer number (109937025).

Almost surely, 2^916807816 is an apocalyptic number.

It is an amenable number.

916807816 is a deficient number, since it is larger than the sum of its proper divisors (842184584).

916807816 is a wasteful number, since it uses less digits than its factorization.

916807816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2665188 (or 2665184 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 46.

The square root of 916807816 is about 30278.8344557712. The cubic root of 916807816 is about 971.4626377162.

The spelling of 916807816 in words is "nine hundred sixteen million, eight hundred seven thousand, eight hundred sixteen".