3197939 has 2 divisors, whose sum is σ = 3197940. Its totient is φ = 3197938.

The previous prime is 3197923. The next prime is 3197983. The reversal of 3197939 is 9397913.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3197939 - 2⁴ = 3197923 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 3197896 and 3197905.

It is not a weakly prime, because it can be changed into another prime (3197239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1598969 + 1598970.

It is an arithmetic number, because the mean of its divisors is an integer number (1598970).

Almost surely, 2^3197939 is an apocalyptic number.

3197939 is a deficient number, since it is larger than the sum of its proper divisors (1).

3197939 is an equidigital number, since it uses as much as digits as its factorization.

3197939 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 45927, while the sum is 41.

The square root of 3197939 is about 1788.2782222015. The cubic root of 3197939 is about 147.3296165307.

The spelling of 3197939 in words is "three million, one hundred ninety-seven thousand, nine hundred thirty-nine".