2168972 has 24 divisors (see below), whose sum is σ = 4170096. Its totient is φ = 980928.

The previous prime is 2168953. The next prime is 2168987. The reversal of 2168972 is 2798612.

It is a happy number.

2168972 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2363 + ... + 3149.

It is an arithmetic number, because the mean of its divisors is an integer number (173754).

2^2168972 is an apocalyptic number.

It is an amenable number.

2168972 is a deficient number, since it is larger than the sum of its proper divisors (2001124).

2168972 is a wasteful number, since it uses less digits than its factorization.

2168972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 857 (or 855 counting only the distinct ones).

The product of its digits is 12096, while the sum is 35.

The square root of 2168972 is about 1472.7430189955. The cubic root of 2168972 is about 129.4448118325. Note that the first 3 decimals are identical.

The spelling of 2168972 in words is "two million, one hundred sixty-eight thousand, nine hundred seventy-two".