455891 has 4 divisors (see below), whose sum is σ = 462384. Its totient is φ = 449400.

The previous prime is 455881. The next prime is 455899. The reversal of 455891 is 198554.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 198554 = 2 ⋅99277.

It is a cyclic number.

It is not a de Polignac number, because 455891 - 2⁶ = 455827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (455899) 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, 3140 + ... + 3281.

It is an arithmetic number, because the mean of its divisors is an integer number (115596).

2⁴⁵⁵⁸⁹¹ is an apocalyptic number.

455891 is a deficient number, since it is larger than the sum of its proper divisors (6493).

455891 is an equidigital number, since it uses as much as digits as its factorization.

455891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6492.

The product of its digits is 7200, while the sum is 32.

The square root of 455891 is about 675.1970082872. The cubic root of 455891 is about 76.9638892914.

The spelling of 455891 in words is "four hundred fifty-five thousand, eight hundred ninety-one".