223319979 has 12 divisors (see below), whose sum is σ = 325429416. Its totient is φ = 147561792.

The previous prime is 223319953. The next prime is 223320011. The reversal of 223319979 is 979913322.

It is a happy number.

It is not a de Polignac number, because 223319979 - 2¹¹ = 223317931 is a prime.

It is not an unprimeable number, because it can be changed into a prime (223319909) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 108777 + ... + 110810.

It is an arithmetic number, because the mean of its divisors is an integer number (27119118).

Almost surely, 2^223319979 is an apocalyptic number.

223319979 is a deficient number, since it is larger than the sum of its proper divisors (102109437).

223319979 is a wasteful number, since it uses less digits than its factorization.

223319979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219706 (or 219703 counting only the distinct ones).

The product of its digits is 183708, while the sum is 45.

The square root of 223319979 is about 14943.8943719500. The cubic root of 223319979 is about 606.7026046751.

It can be divided in two parts, 223 and 319979, that multiplied together give a palindrome (71355317).

The spelling of 223319979 in words is "two hundred twenty-three million, three hundred nineteen thousand, nine hundred seventy-nine".