223923455 has 16 divisors (see below), whose sum is σ = 323258880. Its totient is φ = 145465632.

The previous prime is 223923449. The next prime is 223923461. The reversal of 223923455 is 554329322.

It is an interprime number because it is at equal distance from previous prime (223923449) and next prime (223923461).

It is a cyclic number.

It is not a de Polignac number, because 223923455 - 2⁶ = 223923391 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 167699 + ... + 169028.

It is an arithmetic number, because the mean of its divisors is an integer number (20203680).

Almost surely, 2^223923455 is an apocalyptic number.

223923455 is a deficient number, since it is larger than the sum of its proper divisors (99335425).

223923455 is a wasteful number, since it uses less digits than its factorization.

223923455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336758.

The product of its digits is 64800, while the sum is 35.

The square root of 223923455 is about 14964.0721396283. The cubic root of 223923455 is about 607.2486092014.

The spelling of 223923455 in words is "two hundred twenty-three million, nine hundred twenty-three thousand, four hundred fifty-five".