691792963 has 2 divisors, whose sum is σ = 691792964. Its totient is φ = 691792962.

The previous prime is 691792957. The next prime is 691793051. The reversal of 691792963 is 369297196.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 691792963 - 2²⁹ = 154922051 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 691792963.

It is not a weakly prime, because it can be changed into another prime (691792903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 345896481 + 345896482.

It is an arithmetic number, because the mean of its divisors is an integer number (345896482).

Almost surely, 2^691792963 is an apocalyptic number.

691792963 is a deficient number, since it is larger than the sum of its proper divisors (1).

691792963 is an equidigital number, since it uses as much as digits as its factorization.

691792963 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1102248, while the sum is 52.

The square root of 691792963 is about 26301.9573986424. The cubic root of 691792963 is about 884.4203224044.

The spelling of 691792963 in words is "six hundred ninety-one million, seven hundred ninety-two thousand, nine hundred sixty-three".