816507932 has 6 divisors (see below), whose sum is σ = 1428888888. Its totient is φ = 408253964.

The previous prime is 816507917. The next prime is 816507947. The reversal of 816507932 is 239705618.

It is an interprime number because it is at equal distance from previous prime (816507917) and next prime (816507947).

It is a self number, because there is not a number n which added to its sum of digits gives 816507932.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102063488 + ... + 102063495.

It is an arithmetic number, because the mean of its divisors is an integer number (238148148).

Almost surely, 2^816507932 is an apocalyptic number.

It is an amenable number.

816507932 is a deficient number, since it is larger than the sum of its proper divisors (612380956).

816507932 is a wasteful number, since it uses less digits than its factorization.

816507932 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204126987 (or 204126985 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 41.

The square root of 816507932 is about 28574.6029193758. The cubic root of 816507932 is about 934.6595964087.

The spelling of 816507932 in words is "eight hundred sixteen million, five hundred seven thousand, nine hundred thirty-two".