2172982 has 16 divisors (see below), whose sum is σ = 3745440. Its totient is φ = 926208.

The previous prime is 2172979. The next prime is 2172983. The reversal of 2172982 is 2892712.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2172983) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3478 + ... + 4054.

It is an arithmetic number, because the mean of its divisors is an integer number (234090).

2^2172982 is an apocalyptic number.

2172982 is a deficient number, since it is larger than the sum of its proper divisors (1572458).

2172982 is a wasteful number, since it uses less digits than its factorization.

2172982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 855.

The product of its digits is 4032, while the sum is 31.

The square root of 2172982 is about 1474.1037955314. The cubic root of 2172982 is about 129.5245353352.

The spelling of 2172982 in words is "two million, one hundred seventy-two thousand, nine hundred eighty-two".