456845 has 4 divisors (see below), whose sum is σ = 548220. Its totient is φ = 365472.

The previous prime is 456821. The next prime is 456871. The reversal of 456845 is 548654.

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

It can be written as a sum of positive squares in 2 ways, for example, as 316969 + 139876 = 563^2 + 374^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-456845 is a prime.

It is a congruent number.

It is an unprimeable number.

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, 45680 + ... + 45689.

It is an arithmetic number, because the mean of its divisors is an integer number (137055).

2⁴⁵⁶⁸⁴⁵ is an apocalyptic number.

It is an amenable number.

456845 is a deficient number, since it is larger than the sum of its proper divisors (91375).

456845 is an equidigital number, since it uses as much as digits as its factorization.

456845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91374.

The product of its digits is 19200, while the sum is 32.

The square root of 456845 is about 675.9030995638. The cubic root of 456845 is about 77.0175369063.

Subtracting 456845 from its reverse (548654), we obtain a square (91809 = 303²).

It can be divided in two parts, 45 and 6845, that multiplied together give a square (308025 = 555²).

The spelling of 456845 in words is "four hundred fifty-six thousand, eight hundred forty-five".