2057839 has 8 divisors (see below), whose sum is σ = 2368800. Its totient is φ = 1751136.

The previous prime is 2057813. The next prime is 2057849. The reversal of 2057839 is 9387502.

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

It is a cyclic number.

It is not a de Polignac number, because 2057839 - 2⁵ = 2057807 is a prime.

2057839 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2057849) 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, 57 + ... + 2029.

It is an arithmetic number, because the mean of its divisors is an integer number (296100).

2^2057839 is an apocalyptic number.

2057839 is a deficient number, since it is larger than the sum of its proper divisors (310961).

2057839 is a wasteful number, since it uses less digits than its factorization.

2057839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2129.

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 2057839 is about 1434.5169918826. The cubic root of 2057839 is about 127.1951244456.

The spelling of 2057839 in words is "two million, fifty-seven thousand, eight hundred thirty-nine".