228623999 has 8 divisors (see below), whose sum is σ = 234999600. Its totient is φ = 222258816.

The previous prime is 228623987. The next prime is 228624013. The reversal of 228623999 is 999326822.

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

It is a cyclic number.

It is not a de Polignac number, because 228623999 - 2⁸ = 228623743 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228623909) 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, 67652 + ... + 70950.

It is an arithmetic number, because the mean of its divisors is an integer number (29374950).

Almost surely, 2^228623999 is an apocalyptic number.

228623999 is a deficient number, since it is larger than the sum of its proper divisors (6375601).

228623999 is a wasteful number, since it uses less digits than its factorization.

228623999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5209.

The product of its digits is 839808, while the sum is 50.

The square root of 228623999 is about 15120.3174239167. The cubic root of 228623999 is about 611.4682886229.

The spelling of 228623999 in words is "two hundred twenty-eight million, six hundred twenty-three thousand, nine hundred ninety-nine".