223456573 has 4 divisors (see below), whose sum is σ = 224281408. Its totient is φ = 222631740.

The previous prime is 223456561. The next prime is 223456589. The reversal of 223456573 is 375654322.

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.

It is a cyclic number.

It is not a de Polignac number, because 223456573 - 2²¹ = 221359421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223456073) 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, 412011 + ... + 412552.

It is an arithmetic number, because the mean of its divisors is an integer number (56070352).

Almost surely, 2^223456573 is an apocalyptic number.

It is an amenable number.

223456573 is a deficient number, since it is larger than the sum of its proper divisors (824835).

223456573 is an equidigital number, since it uses as much as digits as its factorization.

223456573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 824834.

The product of its digits is 151200, while the sum is 37.

The square root of 223456573 is about 14948.4639010167. The cubic root of 223456573 is about 606.8262763165.

The spelling of 223456573 in words is "two hundred twenty-three million, four hundred fifty-six thousand, five hundred seventy-three".