222678873 has 6 divisors (see below), whose sum is σ = 321647274. Its totient is φ = 148452576.

The previous prime is 222678857. The next prime is 222678887. The reversal of 222678873 is 378876222.

It can be written as a sum of positive squares in only one way, i.e., 139996224 + 82682649 = 11832^2 + 9093^2 .

It is not a de Polignac number, because 222678873 - 2⁴ = 222678857 is a prime.

It is not an unprimeable number, because it can be changed into a prime (222678073) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12371040 + ... + 12371057.

It is an arithmetic number, because the mean of its divisors is an integer number (53607879).

Almost surely, 2^222678873 is an apocalyptic number.

It is an amenable number.

222678873 is a deficient number, since it is larger than the sum of its proper divisors (98968401).

222678873 is a wasteful number, since it uses less digits than its factorization.

222678873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24742103 (or 24742100 counting only the distinct ones).

The product of its digits is 451584, while the sum is 45.

The square root of 222678873 is about 14922.4285221944. The cubic root of 222678873 is about 606.1214751744.

The spelling of 222678873 in words is "two hundred twenty-two million, six hundred seventy-eight thousand, eight hundred seventy-three".