791398806 has 48 divisors (see below), whose sum is σ = 1799809200. Its totient is φ = 231542080.

The previous prime is 791398793. The next prime is 791398813. The reversal of 791398806 is 608893197.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 2260 + ... + 39848.

It is an arithmetic number, because the mean of its divisors is an integer number (37496025).

Almost surely, 2^791398806 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 791398806, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (899904600).

791398806 is an abundant number, since it is smaller than the sum of its proper divisors (1008410394).

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

791398806 is a wasteful number, since it uses less digits than its factorization.

791398806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37645 (or 37634 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 51.

The square root of 791398806 is about 28131.8112818922. The cubic root of 791398806 is about 924.9788379868.

The spelling of 791398806 in words is "seven hundred ninety-one million, three hundred ninety-eight thousand, eight hundred six".