864854166 has 16 divisors (see below), whose sum is σ = 1886954688. Its totient is φ = 262077000.

The previous prime is 864854149. The next prime is 864854167. The reversal of 864854166 is 661458468.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (864854167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6551860 + ... + 6551991.

It is an arithmetic number, because the mean of its divisors is an integer number (117934668).

Almost surely, 2^864854166 is an apocalyptic number.

864854166 is an abundant number, since it is smaller than the sum of its proper divisors (1022100522).

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

864854166 is a wasteful number, since it uses less digits than its factorization.

864854166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13103867.

The product of its digits is 1105920, while the sum is 48.

The square root of 864854166 is about 29408.4029828211. The cubic root of 864854166 is about 952.7543944745.

The spelling of 864854166 in words is "eight hundred sixty-four million, eight hundred fifty-four thousand, one hundred sixty-six".