223369857 has 6 divisors (see below), whose sum is σ = 322645362. Its totient is φ = 148913232.

The previous prime is 223369847. The next prime is 223369873. The reversal of 223369857 is 758963322.

It can be written as a sum of positive squares in only one way, i.e., 211091841 + 12278016 = 14529^2 + 3504^2 .

It is not a de Polignac number, because 223369857 - 2⁶ = 223369793 is a prime.

It is not an unprimeable number, because it can be changed into a prime (223369807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12409428 + ... + 12409445.

It is an arithmetic number, because the mean of its divisors is an integer number (53774227).

Almost surely, 2^223369857 is an apocalyptic number.

It is an amenable number.

223369857 is a deficient number, since it is larger than the sum of its proper divisors (99275505).

223369857 is a wasteful number, since it uses less digits than its factorization.

223369857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24818879 (or 24818876 counting only the distinct ones).

The product of its digits is 544320, while the sum is 45.

The square root of 223369857 is about 14945.5631208730. The cubic root of 223369857 is about 606.7477698532.

The spelling of 223369857 in words is "two hundred twenty-three million, three hundred sixty-nine thousand, eight hundred fifty-seven".