234286721 has 4 divisors (see below), whose sum is σ = 234393600. Its totient is φ = 234179844.

The previous prime is 234286709. The next prime is 234286727. The reversal of 234286721 is 127682432.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-234286721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (234286727) 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 3 ways as a sum of consecutive naturals, for example, 50081 + ... + 54558.

It is an arithmetic number, because the mean of its divisors is an integer number (58598400).

Almost surely, 2^234286721 is an apocalyptic number.

It is an amenable number.

234286721 is a deficient number, since it is larger than the sum of its proper divisors (106879).

234286721 is a wasteful number, since it uses less digits than its factorization.

234286721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106878.

The product of its digits is 32256, while the sum is 35.

The square root of 234286721 is about 15306.4274407845. The cubic root of 234286721 is about 616.4755991778.

The spelling of 234286721 in words is "two hundred thirty-four million, two hundred eighty-six thousand, seven hundred twenty-one".