228167987 has 2 divisors, whose sum is σ = 228167988. Its totient is φ = 228167986.

The previous prime is 228167971. The next prime is 228168001. The reversal of 228167987 is 789761822.

228167987 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 228167987 - 2⁴ = 228167971 is a prime.

It is not a weakly prime, because it can be changed into another prime (228167917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114083993 + 114083994.

It is an arithmetic number, because the mean of its divisors is an integer number (114083994).

Almost surely, 2^228167987 is an apocalyptic number.

228167987 is a deficient number, since it is larger than the sum of its proper divisors (1).

228167987 is an equidigital number, since it uses as much as digits as its factorization.

228167987 is an evil number, because the sum of its binary digits is even.

The product of its digits is 677376, while the sum is 50.

The square root of 228167987 is about 15105.2304517343. The cubic root of 228167987 is about 611.0614744172.

It can be divided in two parts, 22816 and 7987, that added together give a palindrome (30803).

The spelling of 228167987 in words is "two hundred twenty-eight million, one hundred sixty-seven thousand, nine hundred eighty-seven".