2804397806 has 16 divisors (see below), whose sum is σ = 4808738016. Its totient is φ = 1201585056.

The previous prime is 2804397793. The next prime is 2804397811. The reversal of 2804397806 is 6087934082.

It is a super-2 number, since 2×2804397806² = 15729294108595227272, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38780 + ... + 84336.

It is an arithmetic number, because the mean of its divisors is an integer number (300546126).

Almost surely, 2^2804397806 is an apocalyptic number.

2804397806 is a deficient number, since it is larger than the sum of its proper divisors (2004340210).

2804397806 is a wasteful number, since it uses less digits than its factorization.

2804397806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49963.

The product of its (nonzero) digits is 580608, while the sum is 47.

The square root of 2804397806 is about 52956.5652775933. The cubic root of 2804397806 is about 1410.1972807139.

The spelling of 2804397806 in words is "two billion, eight hundred four million, three hundred ninety-seven thousand, eight hundred six".