799823669 has 2 divisors, whose sum is σ = 799823670. Its totient is φ = 799823668.

The previous prime is 799823663. The next prime is 799823681. The reversal of 799823669 is 966328997.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 722910769 + 76912900 = 26887^2 + 8770^2 .

It is a cyclic number.

It is not a de Polignac number, because 799823669 - 2¹⁶ = 799758133 is a prime.

It is a super-2 number, since 2×799823669² = 1279435802985243122, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (799823663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 399911834 + 399911835.

It is an arithmetic number, because the mean of its divisors is an integer number (399911835).

Almost surely, 2^799823669 is an apocalyptic number.

It is an amenable number.

799823669 is a deficient number, since it is larger than the sum of its proper divisors (1).

799823669 is an equidigital number, since it uses as much as digits as its factorization.

799823669 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8817984, while the sum is 59.

The square root of 799823669 is about 28281.1539545330. The cubic root of 799823669 is about 928.2495570441.

The spelling of 799823669 in words is "seven hundred ninety-nine million, eight hundred twenty-three thousand, six hundred sixty-nine".