4043979 has 16 divisors (see below), whose sum is σ = 6307200. Its totient is φ = 2553768.

The previous prime is 4043959. The next prime is 4043983. The reversal of 4043979 is 9793404.

It is not a de Polignac number, because 4043979 - 2⁸ = 4043723 is a prime.

4043979 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4043959) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3429 + ... + 4454.

It is an arithmetic number, because the mean of its divisors is an integer number (394200).

Almost surely, 2^4043979 is an apocalyptic number.

4043979 is a deficient number, since it is larger than the sum of its proper divisors (2263221).

4043979 is a wasteful number, since it uses less digits than its factorization.

4043979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7911 (or 7905 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 4043979 is about 2010.9646938721. The cubic root of 4043979 is about 159.3197552470.

The spelling of 4043979 in words is "four million, forty-three thousand, nine hundred seventy-nine".