228791867 has 2 divisors, whose sum is σ = 228791868. Its totient is φ = 228791866.

The previous prime is 228791851. The next prime is 228791881. The reversal of 228791867 is 768197822.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 228791867 - 2⁴ = 228791851 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (228791807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114395933 + 114395934.

It is an arithmetic number, because the mean of its divisors is an integer number (114395934).

Almost surely, 2^228791867 is an apocalyptic number.

228791867 is a deficient number, since it is larger than the sum of its proper divisors (1).

228791867 is an equidigital number, since it uses as much as digits as its factorization.

228791867 is an odious number, because the sum of its binary digits is odd.

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

The square root of 228791867 is about 15125.8674792555. The cubic root of 228791867 is about 611.6179096114.

The spelling of 228791867 in words is "two hundred twenty-eight million, seven hundred ninety-one thousand, eight hundred sixty-seven".