2056831 has 8 divisors (see below), whose sum is σ = 2369664. Its totient is φ = 1748760.

The previous prime is 2056829. The next prime is 2056841. The reversal of 2056831 is 1386502.

It is a happy number.

2056831 is nontrivially palindromic in base 6.

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 2056831 - 2¹ = 2056829 is a prime.

It is a super-2 number, since 2×2056831² = 8461107525122, which contains 22 as substring.

It is a Duffinian number.

2056831 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 2056796 and 2056805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2056841) 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, 205 + ... + 2038.

It is an arithmetic number, because the mean of its divisors is an integer number (296208).

2^2056831 is an apocalyptic number.

2056831 is a deficient number, since it is larger than the sum of its proper divisors (312833).

2056831 is a wasteful number, since it uses less digits than its factorization.

2056831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2381.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 2056831 is about 1434.1656110784. The cubic root of 2056831 is about 127.1743528780.

The spelling of 2056831 in words is "two million, fifty-six thousand, eight hundred thirty-one".