223713665 has 24 divisors (see below), whose sum is σ = 312943680. Its totient is φ = 153080928.

The previous prime is 223713661. The next prime is 223713673. The reversal of 223713665 is 566317322.

It is not a de Polignac number, because 223713665 - 2² = 223713661 is a prime.

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

It is not an unprimeable number, because it can be changed into a prime (223713661) 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 23 ways as a sum of consecutive naturals, for example, 209924 + ... + 210986.

It is an arithmetic number, because the mean of its divisors is an integer number (13039320).

Almost surely, 2^223713665 is an apocalyptic number.

It is an amenable number.

223713665 is a deficient number, since it is larger than the sum of its proper divisors (89230015).

223713665 is a wasteful number, since it uses less digits than its factorization.

223713665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1941 (or 1934 counting only the distinct ones).

The product of its digits is 45360, while the sum is 35.

The square root of 223713665 is about 14957.0607072379. The cubic root of 223713665 is about 607.0589097182.

The spelling of 223713665 in words is "two hundred twenty-three million, seven hundred thirteen thousand, six hundred sixty-five".