799640963 has 6 divisors (see below), whose sum is σ = 878944332. Its totient is φ = 726946220.

The previous prime is 799640957. The next prime is 799640971. The reversal of 799640963 is 369046997.

It is a de Polignac number, because none of the positive numbers 2^k-799640963 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (799640903) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3304181 + ... + 3304422.

It is an arithmetic number, because the mean of its divisors is an integer number (146490722).

Almost surely, 2^799640963 is an apocalyptic number.

799640963 is a deficient number, since it is larger than the sum of its proper divisors (79303369).

799640963 is a wasteful number, since it uses less digits than its factorization.

799640963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6608625 (or 6608614 counting only the distinct ones).

The product of its (nonzero) digits is 2204496, while the sum is 53.

The square root of 799640963 is about 28277.9235977467. The cubic root of 799640963 is about 928.1788707643.

The spelling of 799640963 in words is "seven hundred ninety-nine million, six hundred forty thousand, nine hundred sixty-three".