455657 has 4 divisors (see below), whose sum is σ = 463440. Its totient is φ = 447876.

The previous prime is 455647. The next prime is 455659. The reversal of 455657 is 756554.

It is a happy number.

455657 is nontrivially palindromic in base 8.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 756554 = 2 ⋅378277.

It is a cyclic number.

It is not a de Polignac number, because 455657 - 2⁸ = 455401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (455659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3803 + ... + 3920.

It is an arithmetic number, because the mean of its divisors is an integer number (115860).

2⁴⁵⁵⁶⁵⁷ is an apocalyptic number.

It is an amenable number.

455657 is a deficient number, since it is larger than the sum of its proper divisors (7783).

455657 is an equidigital number, since it uses as much as digits as its factorization.

455657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7782.

The product of its digits is 21000, while the sum is 32.

The square root of 455657 is about 675.0237032875. The cubic root of 455657 is about 76.9507190144.

Subtracting from 455657 its sum of digits (32), we obtain a square (455625 = 675²).

The spelling of 455657 in words is "four hundred fifty-five thousand, six hundred fifty-seven".