816964051 has 2 divisors, whose sum is σ = 816964052. Its totient is φ = 816964050.

The previous prime is 816964013. The next prime is 816964063. The reversal of 816964051 is 150469618.

816964051 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 816964051 - 2²⁵ = 783409619 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 816963995 and 816964013.

It is not a weakly prime, because it can be changed into another prime (816964151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 408482025 + 408482026.

It is an arithmetic number, because the mean of its divisors is an integer number (408482026).

Almost surely, 2^816964051 is an apocalyptic number.

816964051 is a deficient number, since it is larger than the sum of its proper divisors (1).

816964051 is an equidigital number, since it uses as much as digits as its factorization.

816964051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 816964051 is about 28582.5830008416. The cubic root of 816964051 is about 934.8336043700.

The spelling of 816964051 in words is "eight hundred sixteen million, nine hundred sixty-four thousand, fifty-one".