2872166 has 8 divisors (see below), whose sum is σ = 4699944. Its totient is φ = 1305520.

The previous prime is 2872153. The next prime is 2872183. The reversal of 2872166 is 6612782.

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

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 65255 + ... + 65298.

It is an arithmetic number, because the mean of its divisors is an integer number (587493).

2^2872166 is an apocalyptic number.

2872166 is a deficient number, since it is larger than the sum of its proper divisors (1827778).

2872166 is a wasteful number, since it uses less digits than its factorization.

2872166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130566.

The product of its digits is 8064, while the sum is 32.

The square root of 2872166 is about 1694.7465887265. The cubic root of 2872166 is about 142.1466117829.

It can be divided in two parts, 287216 and 6, that multiplied together give a triangular number (1723296 = T₁₈₅₆).

The spelling of 2872166 in words is "two million, eight hundred seventy-two thousand, one hundred sixty-six".