799549920 has 384 divisors, whose sum is σ = 3149798400. Its totient is φ = 187951104.

The previous prime is 799549901. The next prime is 799549931. The reversal of 799549920 is 29945997.

799549920 is a `hidden beast` number, since 7 + 9 + 9 + 549 + 92 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1291371 + ... + 1291989.

It is an arithmetic number, because the mean of its divisors is an integer number (8202600).

Almost surely, 2^799549920 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 799549920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1574899200).

799549920 is an abundant number, since it is smaller than the sum of its proper divisors (2350248480).

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

799549920 is a wasteful number, since it uses less digits than its factorization.

799549920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 679 (or 665 counting only the distinct ones).

The product of its (nonzero) digits is 1837080, while the sum is 54.

The square root of 799549920 is about 28276.3137625823. The cubic root of 799549920 is about 928.1436435394.

The spelling of 799549920 in words is "seven hundred ninety-nine million, five hundred forty-nine thousand, nine hundred twenty".