799729399 has 16 divisors (see below), whose sum is σ = 966355200. Its totient is φ = 646519104.

The previous prime is 799729379. The next prime is 799729409. The reversal of 799729399 is 993927997.

It is not a de Polignac number, because 799729399 - 2¹³ = 799721207 is a prime.

It is a super-2 number, since 2×799729399² = 1279134223249802402, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 799729399.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (799729379) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16947 + ... + 43435.

It is an arithmetic number, because the mean of its divisors is an integer number (60397200).

Almost surely, 2^799729399 is an apocalyptic number.

799729399 is a deficient number, since it is larger than the sum of its proper divisors (166625801).

799729399 is a wasteful number, since it uses less digits than its factorization.

799729399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26742.

The product of its digits is 17360406, while the sum is 64.

The square root of 799729399 is about 28279.4872478268. The cubic root of 799729399 is about 928.2130867040.

The spelling of 799729399 in words is "seven hundred ninety-nine million, seven hundred twenty-nine thousand, three hundred ninety-nine".