3217979 has 2 divisors, whose sum is σ = 3217980. Its totient is φ = 3217978.

The previous prime is 3217969. The next prime is 3217997. The reversal of 3217979 is 9797123.

3217979 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Together with next prime (3217997) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3217979 is a prime.

It is not a weakly prime, because it can be changed into another prime (3217939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1608989 + 1608990.

It is an arithmetic number, because the mean of its divisors is an integer number (1608990).

Almost surely, 2^3217979 is an apocalyptic number.

3217979 is a deficient number, since it is larger than the sum of its proper divisors (1).

3217979 is an equidigital number, since it uses as much as digits as its factorization.

3217979 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23814, while the sum is 38.

The square root of 3217979 is about 1793.8726264705. The cubic root of 3217979 is about 147.6367247037.

The spelling of 3217979 in words is "three million, two hundred seventeen thousand, nine hundred seventy-nine".