3421578439 has 4 divisors (see below), whose sum is σ = 3425335200. Its totient is φ = 3417821680.

The previous prime is 3421578431. The next prime is 3421578443. The reversal of 3421578439 is 9348751243.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3421578439 - 2³ = 3421578431 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3421578431) 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 in 3 ways as a sum of consecutive naturals, for example, 1877014 + ... + 1878835.

It is an arithmetic number, because the mean of its divisors is an integer number (856333800).

Almost surely, 2^3421578439 is an apocalyptic number.

3421578439 is a deficient number, since it is larger than the sum of its proper divisors (3756761).

3421578439 is an equidigital number, since it uses as much as digits as its factorization.

3421578439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3756760.

The product of its digits is 725760, while the sum is 46.

The square root of 3421578439 is about 58494.2598807780. The cubic root of 3421578439 is about 1506.8690059710.

The spelling of 3421578439 in words is "three billion, four hundred twenty-one million, five hundred seventy-eight thousand, four hundred thirty-nine".