3974539 has 2 divisors, whose sum is σ = 3974540. Its totient is φ = 3974538.

The previous prime is 3974527. The next prime is 3974563. The reversal of 3974539 is 9354793.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3974539 - 2⁹ = 3974027 is a prime.

It is not a weakly prime, because it can be changed into another prime (3974939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1987269 + 1987270.

It is an arithmetic number, because the mean of its divisors is an integer number (1987270).

Almost surely, 2^3974539 is an apocalyptic number.

3974539 is a deficient number, since it is larger than the sum of its proper divisors (1).

3974539 is an equidigital number, since it uses as much as digits as its factorization.

3974539 is an evil number, because the sum of its binary digits is even.

The product of its digits is 102060, while the sum is 40.

The square root of 3974539 is about 1993.6245885322. The cubic root of 3974539 is about 158.4025812209.

The spelling of 3974539 in words is "three million, nine hundred seventy-four thousand, five hundred thirty-nine".