805996963 has 2 divisors, whose sum is σ = 805996964. Its totient is φ = 805996962.

The previous prime is 805996907. The next prime is 805997039. The reversal of 805996963 is 369699508.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-805996963 is a prime.

It is a super-2 number, since 2×805996963² = 1299262208730446738, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (805996363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 402998481 + 402998482.

It is an arithmetic number, because the mean of its divisors is an integer number (402998482).

Almost surely, 2^805996963 is an apocalyptic number.

805996963 is a deficient number, since it is larger than the sum of its proper divisors (1).

805996963 is an equidigital number, since it uses as much as digits as its factorization.

805996963 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3149280, while the sum is 55.

The square root of 805996963 is about 28390.0856462252. The cubic root of 805996963 is about 930.6316143349.

The spelling of 805996963 in words is "eight hundred five million, nine hundred ninety-six thousand, nine hundred sixty-three".