3429839 has 4 divisors (see below), whose sum is σ = 3919824. Its totient is φ = 2939856.

The previous prime is 3429821. The next prime is 3429857. The reversal of 3429839 is 9389243.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9389243 = 29 ⋅323767.

It is an interprime number because it is at equal distance from previous prime (3429821) and next prime (3429857).

It is a cyclic number.

It is not a de Polignac number, because 3429839 - 2⁸ = 3429583 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3420839) 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 in 3 ways as a sum of consecutive naturals, for example, 244982 + ... + 244995.

It is an arithmetic number, because the mean of its divisors is an integer number (979956).

Almost surely, 2^3429839 is an apocalyptic number.

3429839 is a deficient number, since it is larger than the sum of its proper divisors (489985).

3429839 is an equidigital number, since it uses as much as digits as its factorization.

3429839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 489984.

The product of its digits is 46656, while the sum is 38.

The square root of 3429839 is about 1851.9824513207. The cubic root of 3429839 is about 150.8080686464.

The spelling of 3429839 in words is "three million, four hundred twenty-nine thousand, eight hundred thirty-nine".