3199999997 has 2 divisors, whose sum is σ = 3199999998. Its totient is φ = 3199999996.

The previous prime is 3199999993. The next prime is 3200000087. The reversal of 3199999997 is 7999999913.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1942517476 + 1257482521 = 44074^2 + 35461^2 .

It is a cyclic number.

It is not a de Polignac number, because 3199999997 - 2² = 3199999993 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3199999993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1599999998 + 1599999999.

It is an arithmetic number, because the mean of its divisors is an integer number (1599999999).

Almost surely, 2^3199999997 is an apocalyptic number.

It is an amenable number.

3199999997 is a deficient number, since it is larger than the sum of its proper divisors (1).

3199999997 is an equidigital number, since it uses as much as digits as its factorization.

3199999997 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 100442349, while the sum is 74.

The square root of 3199999997 is about 56568.5424684073. The cubic root of 3199999997 is about 1473.6125989957.

The spelling of 3199999997 in words is "three billion, one hundred ninety-nine million, nine hundred ninety-nine thousand, nine hundred ninety-seven".