3199997 has 2 divisors, whose sum is σ = 3199998. Its totient is φ = 3199996.

The previous prime is 3199993. The next prime is 3200003. The reversal of 3199997 is 7999913.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3189796 + 10201 = 1786^2 + 101^2 .

It is an emirp because it is prime and its reverse (7999913) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3199997 - 2² = 3199993 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3199991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1599998 + 1599999.

It is an arithmetic number, because the mean of its divisors is an integer number (1599999).

Almost surely, 2^3199997 is an apocalyptic number.

It is an amenable number.

3199997 is a deficient number, since it is larger than the sum of its proper divisors (1).

3199997 is an equidigital number, since it uses as much as digits as its factorization.

3199997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 137781, while the sum is 47.

The square root of 3199997 is about 1788.8535434741. The cubic root of 3199997 is about 147.3612138952.

The spelling of 3199997 in words is "three million, one hundred ninety-nine thousand, nine hundred ninety-seven".