799920002 has 18 divisors (see below), whose sum is σ = 1396267497. Its totient is φ = 342702864.

The previous prime is 799919993. The next prime is 799920029. The reversal of 799920002 is 200029997.

It can be written as a sum of positive squares in 2 ways, for example, as 775009921 + 24910081 = 27839^2 + 4991^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=19999.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 278558 + ... + 281414.

Almost surely, 2^799920002 is an apocalyptic number.

799920002 is a deficient number, since it is larger than the sum of its proper divisors (596347495).

799920002 is an frugal number, since it uses more digits than its factorization.

799920002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5730 (or 2866 counting only the distinct ones).

The product of its (nonzero) digits is 20412, while the sum is 38.

The square root of 799920002 is about 28282.8570338995. The cubic root of 799920002 is about 928.2868225391.

Adding to 799920002 its reverse (200029997), we get a palindrome (999949999).

The spelling of 799920002 in words is "seven hundred ninety-nine million, nine hundred twenty thousand, two".