799990023 has 12 divisors (see below), whose sum is σ = 1240801080. Its totient is φ = 457137072.

The previous prime is 799990021. The next prime is 799990031. The reversal of 799990023 is 320099997.

It is a happy number.

It is not a de Polignac number, because 799990023 - 2¹ = 799990021 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (799990021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2720908 + ... + 2721201.

It is an arithmetic number, because the mean of its divisors is an integer number (103400090).

Almost surely, 2^799990023 is an apocalyptic number.

799990023 is a deficient number, since it is larger than the sum of its proper divisors (440811057).

799990023 is a wasteful number, since it uses less digits than its factorization.

799990023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5442126 (or 5442119 counting only the distinct ones).

The product of its (nonzero) digits is 275562, while the sum is 48.

The square root of 799990023 is about 28284.0948768031. The cubic root of 799990023 is about 928.3139076122.

The spelling of 799990023 in words is "seven hundred ninety-nine million, nine hundred ninety thousand, twenty-three".