3982399 has 2 divisors, whose sum is σ = 3982400. Its totient is φ = 3982398.

The previous prime is 3982397. The next prime is 3982411. The reversal of 3982399 is 9932893.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (9932893) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3982399 - 2¹ = 3982397 is a prime.

Together with 3982397, it forms a pair of twin primes.

3982399 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3982393) 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, 1991199 + 1991200.

It is an arithmetic number, because the mean of its divisors is an integer number (1991200).

Almost surely, 2^3982399 is an apocalyptic number.

3982399 is a deficient number, since it is larger than the sum of its proper divisors (1).

3982399 is an equidigital number, since it uses as much as digits as its factorization.

3982399 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 104976, while the sum is 43.

The square root of 3982399 is about 1995.5948987708. The cubic root of 3982399 is about 158.5069308038.

The spelling of 3982399 in words is "three million, nine hundred eighty-two thousand, three hundred ninety-nine".