2686172 has 12 divisors (see below), whose sum is σ = 4733400. Its totient is φ = 1333776.

The previous prime is 2686141. The next prime is 2686207. The reversal of 2686172 is 2716862.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

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, 1658 + ... + 2849.

It is an arithmetic number, because the mean of its divisors is an integer number (394450).

2^2686172 is an apocalyptic number.

It is an amenable number.

2686172 is a deficient number, since it is larger than the sum of its proper divisors (2047228).

2686172 is a wasteful number, since it uses less digits than its factorization.

2686172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4660 (or 4658 counting only the distinct ones).

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

The square root of 2686172 is about 1638.9545448242. The cubic root of 2686172 is about 139.0095399142.

The spelling of 2686172 in words is "two million, six hundred eighty-six thousand, one hundred seventy-two".