229727993 has 8 divisors (see below), whose sum is σ = 263802720. Its totient is φ = 197851680.

The previous prime is 229727977. The next prime is 229728017. The reversal of 229727993 is 399727922.

It is a happy number.

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 229727993 - 2⁴ = 229727977 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (229727903) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 549380 + ... + 549797.

It is an arithmetic number, because the mean of its divisors is an integer number (32975340).

Almost surely, 2^229727993 is an apocalyptic number.

It is an amenable number.

229727993 is a deficient number, since it is larger than the sum of its proper divisors (34074727).

229727993 is a wasteful number, since it uses less digits than its factorization.

229727993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1099207.

The product of its digits is 857304, while the sum is 50.

The square root of 229727993 is about 15156.7804298934. The cubic root of 229727993 is about 612.4509408436.

The spelling of 229727993 in words is "two hundred twenty-nine million, seven hundred twenty-seven thousand, nine hundred ninety-three".