799869019 has 2 divisors, whose sum is σ = 799869020. Its totient is φ = 799869018.

The previous prime is 799869013. The next prime is 799869047. The reversal of 799869019 is 910968997.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 799869019 - 2⁹ = 799868507 is a prime.

It is a super-2 number, since 2×799869019² = 1279580895112044722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (799869013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 399934509 + 399934510.

It is an arithmetic number, because the mean of its divisors is an integer number (399934510).

Almost surely, 2^799869019 is an apocalyptic number.

799869019 is a deficient number, since it is larger than the sum of its proper divisors (1).

799869019 is an equidigital number, since it uses as much as digits as its factorization.

799869019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2204496, while the sum is 58.

The square root of 799869019 is about 28281.9557138469. The cubic root of 799869019 is about 928.2671006284.

The spelling of 799869019 in words is "seven hundred ninety-nine million, eight hundred sixty-nine thousand, nineteen".