799758636 has 48 divisors (see below), whose sum is σ = 1941270240. Its totient is φ = 255951360.

The previous prime is 799758623. The next prime is 799758637. The reversal of 799758636 is 636857997.

It is a super-2 number, since 2×799758636² = 1279227751713160992, 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 799758636.

It is not an unprimeable number, because it can be changed into a prime (799758637) 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 15 ways as a sum of consecutive naturals, for example, 56640 + ... + 69336.

It is an arithmetic number, because the mean of its divisors is an integer number (40443130).

Almost surely, 2^799758636 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 799758636, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (970635120).

799758636 is an abundant number, since it is smaller than the sum of its proper divisors (1141511604).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

799758636 is a wasteful number, since it uses less digits than its factorization.

799758636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12914 (or 12912 counting only the distinct ones).

The product of its digits is 17146080, while the sum is 60.

The square root of 799758636 is about 28280.0041725598. The cubic root of 799758636 is about 928.2243979614.

The spelling of 799758636 in words is "seven hundred ninety-nine million, seven hundred fifty-eight thousand, six hundred thirty-six".