799520720 has 40 divisors (see below), whose sum is σ = 1922990760. Its totient is φ = 308779520.

The previous prime is 799520707. The next prime is 799520737. The reversal of 799520720 is 27025997.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 305970064 + 493550656 = 17492^2 + 22216^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

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, 169991 + ... + 174630.

It is an arithmetic number, because the mean of its divisors is an integer number (48074769).

Almost surely, 2^799520720 is an apocalyptic number.

It is an amenable number.

799520720 is an abundant number, since it is smaller than the sum of its proper divisors (1123470040).

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

799520720 is a wasteful number, since it uses less digits than its factorization.

799520720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344663 (or 344657 counting only the distinct ones).

The product of its (nonzero) digits is 79380, while the sum is 41.

The square root of 799520720 is about 28275.7974246528. The cubic root of 799520720 is about 928.1323446308.

The spelling of 799520720 in words is "seven hundred ninety-nine million, five hundred twenty thousand, seven hundred twenty".