3398639 has 2 divisors, whose sum is σ = 3398640. Its totient is φ = 3398638.

The previous prime is 3398627. The next prime is 3398651. The reversal of 3398639 is 9368933.

It is a balanced prime because it is at equal distance from previous prime (3398627) and next prime (3398651).

It is a cyclic number.

It is not a de Polignac number, because 3398639 - 2¹⁶ = 3333103 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3398596 and 3398605.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3398669) 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, 1699319 + 1699320.

It is an arithmetic number, because the mean of its divisors is an integer number (1699320).

Almost surely, 2^3398639 is an apocalyptic number.

3398639 is a deficient number, since it is larger than the sum of its proper divisors (1).

3398639 is an equidigital number, since it uses as much as digits as its factorization.

3398639 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 104976, while the sum is 41.

The square root of 3398639 is about 1843.5398015774. The cubic root of 3398639 is about 150.3493929393.

The spelling of 3398639 in words is "three million, three hundred ninety-eight thousand, six hundred thirty-nine".