223457 has 4 divisors (see below), whose sum is σ = 240660. Its totient is φ = 206256.

The previous prime is 223441. The next prime is 223463. The reversal of 223457 is 754322.

223457 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 126736 + 96721 = 356^2 + 311^2 .

It is a cyclic number.

It is not a de Polignac number, because 223457 - 2⁴ = 223441 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (223757) 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, 8582 + ... + 8607.

It is an arithmetic number, because the mean of its divisors is an integer number (60165).

2²²³⁴⁵⁷ is an apocalyptic number.

It is an amenable number.

223457 is a deficient number, since it is larger than the sum of its proper divisors (17203).

223457 is a wasteful number, since it uses less digits than its factorization.

223457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17202.

The product of its digits is 1680, while the sum is 23.

The square root of 223457 is about 472.7123861292. The cubic root of 223457 is about 60.6826662841.

Adding to 223457 its reverse (754322), we get a palindrome (977779).

The spelling of 223457 in words is "two hundred twenty-three thousand, four hundred fifty-seven".