223444971 has 12 divisors (see below), whose sum is σ = 333883680. Its totient is φ = 143826480.

The previous prime is 223444967. The next prime is 223444973. The reversal of 223444971 is 179444322.

It is not a de Polignac number, because 223444971 - 2² = 223444967 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (223444973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 427795 + ... + 428316.

It is an arithmetic number, because the mean of its divisors is an integer number (27823640).

Almost surely, 2^223444971 is an apocalyptic number.

223444971 is a deficient number, since it is larger than the sum of its proper divisors (110438709).

223444971 is a wasteful number, since it uses less digits than its factorization.

223444971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 856146 (or 856143 counting only the distinct ones).

The product of its digits is 48384, while the sum is 36.

The square root of 223444971 is about 14948.0758293501. The cubic root of 223444971 is about 606.8157738727.

The spelling of 223444971 in words is "two hundred twenty-three million, four hundred forty-four thousand, nine hundred seventy-one".