3996919 has 2 divisors, whose sum is σ = 3996920. Its totient is φ = 3996918.

The previous prime is 3996911. The next prime is 3996931. The reversal of 3996919 is 9196993.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3996919 - 2³ = 3996911 is a prime.

It is a super-2 number, since 2×3996919² = 31950722985122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3996911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1998459 + 1998460.

It is an arithmetic number, because the mean of its divisors is an integer number (1998460).

Almost surely, 2^3996919 is an apocalyptic number.

3996919 is a deficient number, since it is larger than the sum of its proper divisors (1).

3996919 is an equidigital number, since it uses as much as digits as its factorization.

3996919 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 118098, while the sum is 46.

The square root of 3996919 is about 1999.2296016216. The cubic root of 3996919 is about 158.6993382061.

The spelling of 3996919 in words is "three million, nine hundred ninety-six thousand, nine hundred nineteen".