857700866 has 16 divisors (see below), whose sum is σ = 1464533568. Its totient is φ = 372913200.

The previous prime is 857700841. The next prime is 857700887. The reversal of 857700866 is 668007758.

857700866 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 857700866.

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, 847025 + ... + 848036.

It is an arithmetic number, because the mean of its divisors is an integer number (91533348).

Almost surely, 2^857700866 is an apocalyptic number.

857700866 is a deficient number, since it is larger than the sum of its proper divisors (606832702).

857700866 is a wasteful number, since it uses less digits than its factorization.

857700866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1695097.

The product of its (nonzero) digits is 564480, while the sum is 47.

The square root of 857700866 is about 29286.5304534354. The cubic root of 857700866 is about 950.1203415418.

The spelling of 857700866 in words is "eight hundred fifty-seven million, seven hundred thousand, eight hundred sixty-six".