2003979 has 8 divisors (see below), whose sum is σ = 2684560. Its totient is φ = 1329696.

The previous prime is 2003971. The next prime is 2003999. The reversal of 2003979 is 9793002.

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

It is not a de Polignac number, because 2003979 - 2³ = 2003971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2003971) 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, 772 + ... + 2145.

It is an arithmetic number, because the mean of its divisors is an integer number (335570).

2^2003979 is an apocalyptic number.

2003979 is a deficient number, since it is larger than the sum of its proper divisors (680581).

2003979 is a wasteful number, since it uses less digits than its factorization.

2003979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3149.

The product of its (nonzero) digits is 3402, while the sum is 30.

The square root of 2003979 is about 1415.6196523078. The cubic root of 2003979 is about 126.0756034049.

The spelling of 2003979 in words is "two million, three thousand, nine hundred seventy-nine".