3996569 has 2 divisors, whose sum is σ = 3996570. Its totient is φ = 3996568.

The previous prime is 3996541. The next prime is 3996583. The reversal of 3996569 is 9656993.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3948169 + 48400 = 1987^2 + 220^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3996569 is a prime.

It is a super-2 number, since 2×3996569² = 31945127543522, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (3996529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1998284 + 1998285.

It is an arithmetic number, because the mean of its divisors is an integer number (1998285).

Almost surely, 2^3996569 is an apocalyptic number.

It is an amenable number.

3996569 is a deficient number, since it is larger than the sum of its proper divisors (1).

3996569 is an equidigital number, since it uses as much as digits as its factorization.

3996569 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 393660, while the sum is 47.

The square root of 3996569 is about 1999.1420659873. The cubic root of 3996569 is about 158.6947057721.

The spelling of 3996569 in words is "three million, nine hundred ninety-six thousand, five hundred sixty-nine".