806368405 has 12 divisors (see below), whose sum is σ = 980083692. Its totient is φ = 636904320.

The previous prime is 806368369. The next prime is 806368411. The reversal of 806368405 is 504863608.

It can be written as a sum of positive squares in 2 ways, for example, as 252142641 + 554225764 = 15879^2 + 23542^2 .

It is not a de Polignac number, because 806368405 - 2⁹ = 806367893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18285 + ... + 44125.

It is an arithmetic number, because the mean of its divisors is an integer number (81673641).

Almost surely, 2^806368405 is an apocalyptic number.

It is an amenable number.

806368405 is a deficient number, since it is larger than the sum of its proper divisors (173715287).

806368405 is an equidigital number, since it uses as much as digits as its factorization.

806368405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26004 (or 25925 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 40.

The square root of 806368405 is about 28396.6266482482. The cubic root of 806368405 is about 930.7745522516.

The spelling of 806368405 in words is "eight hundred six million, three hundred sixty-eight thousand, four hundred five".