3982819 has 2 divisors, whose sum is σ = 3982820. Its totient is φ = 3982818.

The previous prime is 3982813. The next prime is 3982877. The reversal of 3982819 is 9182893.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3982819 - 2⁷ = 3982691 is a prime.

It is a super-2 number, since 2×3982819² = 31725694373522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3982813) 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, 1991409 + 1991410.

It is an arithmetic number, because the mean of its divisors is an integer number (1991410).

Almost surely, 2^3982819 is an apocalyptic number.

3982819 is a deficient number, since it is larger than the sum of its proper divisors (1).

3982819 is an equidigital number, since it uses as much as digits as its factorization.

3982819 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 31104, while the sum is 40.

The square root of 3982819 is about 1995.7001277747. The cubic root of 3982819 is about 158.5125028699.

The spelling of 3982819 in words is "three million, nine hundred eighty-two thousand, eight hundred nineteen".