223439979 has 16 divisors (see below), whose sum is σ = 342013952. Its totient is φ = 127104768.

The previous prime is 223439969. The next prime is 223439987. The reversal of 223439979 is 979934322.

It is not a de Polignac number, because 223439979 - 2⁵ = 223439947 is a prime.

It is a super-3 number, since 3×223439979³ (a number of 26 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (223439969) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19174 + ... + 28539.

It is an arithmetic number, because the mean of its divisors is an integer number (21375872).

Almost surely, 2^223439979 is an apocalyptic number.

223439979 is a deficient number, since it is larger than the sum of its proper divisors (118573973).

223439979 is a wasteful number, since it uses less digits than its factorization.

223439979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47946.

The product of its digits is 734832, while the sum is 48.

The square root of 223439979 is about 14947.9088504045. The cubic root of 223439979 is about 606.8112548676.

The spelling of 223439979 in words is "two hundred twenty-three million, four hundred thirty-nine thousand, nine hundred seventy-nine".