456839 has 4 divisors (see below), whose sum is σ = 469224. Its totient is φ = 444456.

The previous prime is 456821. The next prime is 456871. The reversal of 456839 is 938654.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-456839 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 456799 and 456808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (456809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6137 + ... + 6210.

It is an arithmetic number, because the mean of its divisors is an integer number (117306).

2⁴⁵⁶⁸³⁹ is an apocalyptic number.

456839 is a deficient number, since it is larger than the sum of its proper divisors (12385).

456839 is a wasteful number, since it uses less digits than its factorization.

456839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12384.

The product of its digits is 25920, while the sum is 35.

The square root of 456839 is about 675.8986610432. The cubic root of 456839 is about 77.0171997334.

The spelling of 456839 in words is "four hundred fifty-six thousand, eight hundred thirty-nine".