2183979 has 24 divisors (see below), whose sum is σ = 3447360. Its totient is φ = 1226064.

The previous prime is 2183969. The next prime is 2184001. The reversal of 2183979 is 9793812.

It is not a de Polignac number, because 2183979 - 2⁴ = 2183963 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2183959) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12112 + ... + 12290.

It is an arithmetic number, because the mean of its divisors is an integer number (143640).

2^2183979 is an apocalyptic number.

2183979 is a deficient number, since it is larger than the sum of its proper divisors (1263381).

2183979 is a wasteful number, since it uses less digits than its factorization.

2183979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279 (or 272 counting only the distinct ones).

The product of its digits is 27216, while the sum is 39.

The square root of 2183979 is about 1477.8291511538. The cubic root of 2183979 is about 129.7426664898.

The spelling of 2183979 in words is "two million, one hundred eighty-three thousand, nine hundred seventy-nine".