3979013 has 2 divisors, whose sum is σ = 3979014. Its totient is φ = 3979012.

The previous prime is 3978979. The next prime is 3979021. The reversal of 3979013 is 3109793.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3621409 + 357604 = 1903^2 + 598^2 .

It is a cyclic number.

It is not a de Polignac number, because 3979013 - 2¹² = 3974917 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3979043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1989506 + 1989507.

It is an arithmetic number, because the mean of its divisors is an integer number (1989507).

Almost surely, 2^3979013 is an apocalyptic number.

It is an amenable number.

3979013 is a deficient number, since it is larger than the sum of its proper divisors (1).

3979013 is an equidigital number, since it uses as much as digits as its factorization.

3979013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5103, while the sum is 32.

The square root of 3979013 is about 1994.7463497899. The cubic root of 3979013 is about 158.4619950211.

The spelling of 3979013 in words is "three million, nine hundred seventy-nine thousand, thirteen".