3211979 has 2 divisors, whose sum is σ = 3211980. Its totient is φ = 3211978.

The previous prime is 3211939. The next prime is 3211987. The reversal of 3211979 is 9791123.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3211979 - 2⁸ = 3211723 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (3211909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1605989 + 1605990.

It is an arithmetic number, because the mean of its divisors is an integer number (1605990).

Almost surely, 2^3211979 is an apocalyptic number.

3211979 is a deficient number, since it is larger than the sum of its proper divisors (1).

3211979 is an equidigital number, since it uses as much as digits as its factorization.

3211979 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3402, while the sum is 32.

The square root of 3211979 is about 1792.1994866644. The cubic root of 3211979 is about 147.5449101970.

The spelling of 3211979 in words is "three million, two hundred eleven thousand, nine hundred seventy-nine".