223729913 has 8 divisors (see below), whose sum is σ = 244421760. Its totient is φ = 203096880.

The previous prime is 223729897. The next prime is 223729939. The reversal of 223729913 is 319927322.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 223729913 - 2⁴ = 223729897 is a prime.

It is not an unprimeable number, because it can be changed into a prime (223729963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6545 + ... + 22142.

It is an arithmetic number, because the mean of its divisors is an integer number (30552720).

Almost surely, 2^223729913 is an apocalyptic number.

It is an amenable number.

223729913 is a deficient number, since it is larger than the sum of its proper divisors (20691847).

223729913 is a wasteful number, since it uses less digits than its factorization.

223729913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29407.

The product of its digits is 40824, while the sum is 38.

The square root of 223729913 is about 14957.6038522218. The cubic root of 223729913 is about 607.0736059660.

The spelling of 223729913 in words is "two hundred twenty-three million, seven hundred twenty-nine thousand, nine hundred thirteen".