3949579 has 2 divisors, whose sum is σ = 3949580. Its totient is φ = 3949578.

The previous prime is 3949541. The next prime is 3949609. The reversal of 3949579 is 9759493.

It is a strong prime.

It is an emirp because it is prime and its reverse (9759493) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3949579 - 2¹⁵ = 3916811 is a prime.

It is a Chen prime.

3949579 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (3949529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1974789 + 1974790.

It is an arithmetic number, because the mean of its divisors is an integer number (1974790).

Almost surely, 2^3949579 is an apocalyptic number.

3949579 is a deficient number, since it is larger than the sum of its proper divisors (1).

3949579 is an equidigital number, since it uses as much as digits as its factorization.

3949579 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 306180, while the sum is 46.

The square root of 3949579 is about 1987.3547745684. The cubic root of 3949579 is about 158.0702966582.

The spelling of 3949579 in words is "three million, nine hundred forty-nine thousand, five hundred seventy-nine".