223929009 has 16 divisors (see below), whose sum is σ = 338807040. Its totient is φ = 146108880.

The previous prime is 223928933. The next prime is 223929011. The reversal of 223929009 is 900929322.

223929009 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 223929009 - 2¹³ = 223920817 is a prime.

It is not an unprimeable number, because it can be changed into a prime (223929029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86962 + ... + 89499.

It is an arithmetic number, because the mean of its divisors is an integer number (21175440).

Almost surely, 2^223929009 is an apocalyptic number.

It is an amenable number.

223929009 is a deficient number, since it is larger than the sum of its proper divisors (114878031).

223929009 is a wasteful number, since it uses less digits than its factorization.

223929009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176517 (or 176511 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 36.

The square root of 223929009 is about 14964.2577163052. The cubic root of 223929009 is about 607.2536297130.

The spelling of 223929009 in words is "two hundred twenty-three million, nine hundred twenty-nine thousand, nine".