816132963 has 32 divisors (see below), whose sum is σ = 1131520000. Its totient is φ = 522995616.

The previous prime is 816132959. The next prime is 816132971. The reversal of 816132963 is 369231618.

It is not a de Polignac number, because 816132963 - 2² = 816132959 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (816132913) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1635288 + ... + 1635786.

It is an arithmetic number, because the mean of its divisors is an integer number (35360000).

Almost surely, 2^816132963 is an apocalyptic number.

816132963 is a deficient number, since it is larger than the sum of its proper divisors (315387037).

816132963 is a wasteful number, since it uses less digits than its factorization.

816132963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 751.

The product of its digits is 46656, while the sum is 39.

The square root of 816132963 is about 28568.0409373832. The cubic root of 816132963 is about 934.5164983757.

The spelling of 816132963 in words is "eight hundred sixteen million, one hundred thirty-two thousand, nine hundred sixty-three".