806357866 has 16 divisors (see below), whose sum is σ = 1214478720. Its totient is φ = 401536080.

The previous prime is 806357861. The next prime is 806357899. The reversal of 806357866 is 668753608.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (806357861) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 960675 + ... + 961513.

It is an arithmetic number, because the mean of its divisors is an integer number (75904920).

Almost surely, 2^806357866 is an apocalyptic number.

806357866 is a deficient number, since it is larger than the sum of its proper divisors (408120854).

806357866 is a wasteful number, since it uses less digits than its factorization.

806357866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2229.

The product of its (nonzero) digits is 1451520, while the sum is 49.

The square root of 806357866 is about 28396.4410798255. The cubic root of 806357866 is about 930.7704972499.

The spelling of 806357866 in words is "eight hundred six million, three hundred fifty-seven thousand, eight hundred sixty-six".