268721223 has 8 divisors (see below), whose sum is σ = 364368000. Its totient is φ = 176110968.

The previous prime is 268721209. The next prime is 268721239. The reversal of 268721223 is 322127862.

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

It is not a de Polignac number, because 268721223 - 2⁴ = 268721207 is a prime.

It is a super-2 number, since 2×268721223² = 144422191381231458, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268721273) 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, 758923 + ... + 759276.

It is an arithmetic number, because the mean of its divisors is an integer number (45546000).

Almost surely, 2^268721223 is an apocalyptic number.

268721223 is a deficient number, since it is larger than the sum of its proper divisors (95646777).

268721223 is a wasteful number, since it uses less digits than its factorization.

268721223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1518261.

The product of its digits is 16128, while the sum is 33.

The square root of 268721223 is about 16392.7185969869. The cubic root of 268721223 is about 645.3084060849.

The spelling of 268721223 in words is "two hundred sixty-eight million, seven hundred twenty-one thousand, two hundred twenty-three".