4013979 has 8 divisors (see below), whose sum is σ = 5368320. Its totient is φ = 2667816.

The previous prime is 4013953. The next prime is 4013981. The reversal of 4013979 is 9793104.

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

It is not a de Polignac number, because 4013979 - 2⁷ = 4013851 is a prime.

It is a super-2 number, since 2×4013979² = 32224054824882, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4013909) 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, 787 + ... + 2940.

It is an arithmetic number, because the mean of its divisors is an integer number (671040).

Almost surely, 2^4013979 is an apocalyptic number.

4013979 is a deficient number, since it is larger than the sum of its proper divisors (1354341).

4013979 is a wasteful number, since it uses less digits than its factorization.

4013979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4089.

The product of its (nonzero) digits is 6804, while the sum is 33.

The square root of 4013979 is about 2003.4917020043. The cubic root of 4013979 is about 158.9248091931.

The spelling of 4013979 in words is "four million, thirteen thousand, nine hundred seventy-nine".