34021839 has 4 divisors (see below), whose sum is σ = 45362456. Its totient is φ = 22681224.

The previous prime is 34021831. The next prime is 34021859. The reversal of 34021839 is 93812043.

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

It is not a de Polignac number, because 34021839 - 2³ = 34021831 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 (34021831) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5670304 + ... + 5670309.

It is an arithmetic number, because the mean of its divisors is an integer number (11340614).

Almost surely, 2^34021839 is an apocalyptic number.

34021839 is a deficient number, since it is larger than the sum of its proper divisors (11340617).

34021839 is a wasteful number, since it uses less digits than its factorization.

34021839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11340616.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 34021839 is about 5832.8242730259. The cubic root of 34021839 is about 324.0305279115.

The spelling of 34021839 in words is "thirty-four million, twenty-one thousand, eight hundred thirty-nine".