812992963 has 2 divisors, whose sum is σ = 812992964. Its totient is φ = 812992962.

The previous prime is 812992927. The next prime is 812992969. The reversal of 812992963 is 369299218.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 812992963 - 2¹³ = 812984771 is a prime.

It is not a weakly prime, because it can be changed into another prime (812992969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 406496481 + 406496482.

It is an arithmetic number, because the mean of its divisors is an integer number (406496482).

Almost surely, 2^812992963 is an apocalyptic number.

812992963 is a deficient number, since it is larger than the sum of its proper divisors (1).

812992963 is an equidigital number, since it uses as much as digits as its factorization.

812992963 is an evil number, because the sum of its binary digits is even.

The product of its digits is 419904, while the sum is 49.

The square root of 812992963 is about 28513.0314593170. The cubic root of 812992963 is about 933.3164679634.

The spelling of 812992963 in words is "eight hundred twelve million, nine hundred ninety-two thousand, nine hundred sixty-three".