3438987839 has 8 divisors (see below), whose sum is σ = 4004428320. Its totient is φ = 2892086496.

The previous prime is 3438987781. The next prime is 3438987847. The reversal of 3438987839 is 9387898343.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3438987839 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 (3438987889) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4634384 + ... + 4635125.

It is an arithmetic number, because the mean of its divisors is an integer number (500553540).

Almost surely, 2^3438987839 is an apocalyptic number.

3438987839 is a deficient number, since it is larger than the sum of its proper divisors (565440481).

3438987839 is an equidigital number, since it uses as much as digits as its factorization.

3438987839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9269569.

The product of its digits is 31352832, while the sum is 62.

The square root of 3438987839 is about 58642.8839587550. The cubic root of 3438987839 is about 1509.4203934578.

The spelling of 3438987839 in words is "three billion, four hundred thirty-eight million, nine hundred eighty-seven thousand, eight hundred thirty-nine".