799000139 has 8 divisors (see below), whose sum is σ = 914497248. Its totient is φ = 683841600.

The previous prime is 799000127. The next prime is 799000171. The reversal of 799000139 is 931000997.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 799000139 - 2⁴ = 799000123 is a prime.

It is not an unprimeable number, because it can be changed into a prime (799000039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79562 + ... + 89039.

It is an arithmetic number, because the mean of its divisors is an integer number (114312156).

Almost surely, 2^799000139 is an apocalyptic number.

799000139 is a deficient number, since it is larger than the sum of its proper divisors (115497109).

799000139 is a wasteful number, since it uses less digits than its factorization.

799000139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169285.

The product of its (nonzero) digits is 15309, while the sum is 38.

The square root of 799000139 is about 28266.5905089383. The cubic root of 799000139 is about 927.9308601847.

The spelling of 799000139 in words is "seven hundred ninety-nine million, one hundred thirty-nine", and thus it is an aban number.