223972856 has 16 divisors (see below), whose sum is σ = 420360840. Its totient is φ = 111876640.

The previous prime is 223972843. The next prime is 223972871. The reversal of 223972856 is 658279322.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4706 + ... + 21681.

Almost surely, 2^223972856 is an apocalyptic number.

It is an amenable number.

223972856 is a deficient number, since it is larger than the sum of its proper divisors (196387984).

223972856 is a wasteful number, since it uses less digits than its factorization.

223972856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27454 (or 27450 counting only the distinct ones).

The product of its digits is 362880, while the sum is 44.

The square root of 223972856 is about 14965.7227022286. The cubic root of 223972856 is about 607.2932620833.

The spelling of 223972856 in words is "two hundred twenty-three million, nine hundred seventy-two thousand, eight hundred fifty-six".