228686667 has 8 divisors (see below), whose sum is σ = 332635200. Its totient is φ = 138597960.

The previous prime is 228686629. The next prime is 228686683. The reversal of 228686667 is 766686822.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 228686667 - 2¹¹ = 228684619 is a prime.

It is not an unprimeable number, because it can be changed into a prime (228686617) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3464917 + ... + 3464982.

It is an arithmetic number, because the mean of its divisors is an integer number (41579400).

Almost surely, 2^228686667 is an apocalyptic number.

228686667 is a deficient number, since it is larger than the sum of its proper divisors (103948533).

228686667 is a wasteful number, since it uses less digits than its factorization.

228686667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6929913.

The product of its digits is 2322432, while the sum is 51.

The square root of 228686667 is about 15122.3895929182. The cubic root of 228686667 is about 611.5241532655.

The spelling of 228686667 in words is "two hundred twenty-eight million, six hundred eighty-six thousand, six hundred sixty-seven".