455643 has 6 divisors (see below), whose sum is σ = 658164. Its totient is φ = 303756.

The previous prime is 455627. The next prime is 455647. The reversal of 455643 is 346554.

It is not a de Polignac number, because 455643 - 2⁴ = 455627 is a prime.

It is a super-2 number, since 2×455643² = 415221086898, which contains 22 as substring.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 455643.

It is not an unprimeable number, because it can be changed into a prime (455647) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 25305 + ... + 25322.

It is an arithmetic number, because the mean of its divisors is an integer number (109694).

2⁴⁵⁵⁶⁴³ is an apocalyptic number.

455643 is a deficient number, since it is larger than the sum of its proper divisors (202521).

455643 is a wasteful number, since it uses less digits than its factorization.

455643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50633 (or 50630 counting only the distinct ones).

The product of its digits is 7200, while the sum is 27.

The square root of 455643 is about 675.0133332016. The cubic root of 455643 is about 76.9499309062.

The spelling of 455643 in words is "four hundred fifty-five thousand, six hundred forty-three".