223293 has 20 divisors (see below), whose sum is σ = 358528. Its totient is φ = 123480.

The previous prime is 223291. The next prime is 223303. The reversal of 223293 is 392322.

It is not a de Polignac number, because 223293 - 2¹ = 223291 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a d-powerful number, because it can be written as 2⁸ + 2¹⁴ + 2¹⁴ + 3⁸ + 9⁴ + 3¹¹ .

It is a Duffinian number.

223293 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223291) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 7188 + ... + 7218.

2²²³²⁹³ is an apocalyptic number.

It is an amenable number.

223293 is a deficient number, since it is larger than the sum of its proper divisors (135235).

223293 is an frugal number, since it uses more digits than its factorization.

223293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62 (or 41 counting only the distinct ones).

The product of its digits is 648, while the sum is 21.

The square root of 223293 is about 472.5388872887. The cubic root of 223293 is about 60.6678172037.

The spelling of 223293 in words is "two hundred twenty-three thousand, two hundred ninety-three".