223691234 has 8 divisors (see below), whose sum is σ = 361347420. Its totient is φ = 103242096.

The previous prime is 223691227. The next prime is 223691263. The reversal of 223691234 is 432196322.

It can be written as a sum of positive squares in 2 ways, for example, as 159643225 + 64048009 = 12635^2 + 8003^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 223691234.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4301729 + ... + 4301780.

Almost surely, 2^223691234 is an apocalyptic number.

223691234 is a deficient number, since it is larger than the sum of its proper divisors (137656186).

223691234 is a wasteful number, since it uses less digits than its factorization.

223691234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8603524.

The product of its digits is 15552, while the sum is 32.

The square root of 223691234 is about 14956.3108419155. The cubic root of 223691234 is about 607.0386198035.

The spelling of 223691234 in words is "two hundred twenty-three million, six hundred ninety-one thousand, two hundred thirty-four".