2856166 has 8 divisors (see below), whose sum is σ = 4338720. Its totient is φ = 1409928.

The previous prime is 2856149. The next prime is 2856167. The reversal of 2856166 is 6616582.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2856167) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8881 + ... + 9196.

It is an arithmetic number, because the mean of its divisors is an integer number (542340).

2^2856166 is an apocalyptic number.

2856166 is a deficient number, since it is larger than the sum of its proper divisors (1482554).

2856166 is a wasteful number, since it uses less digits than its factorization.

2856166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18158.

The product of its digits is 17280, while the sum is 34.

The square root of 2856166 is about 1690.0195265144. The cubic root of 2856166 is about 141.8821676727.

The spelling of 2856166 in words is "two million, eight hundred fifty-six thousand, one hundred sixty-six".