228771859 has 2 divisors, whose sum is σ = 228771860. Its totient is φ = 228771858.

The previous prime is 228771833. The next prime is 228771883. The reversal of 228771859 is 958177822.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 228771859 - 2¹⁹ = 228247571 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (228711859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114385929 + 114385930.

It is an arithmetic number, because the mean of its divisors is an integer number (114385930).

Almost surely, 2^228771859 is an apocalyptic number.

228771859 is a deficient number, since it is larger than the sum of its proper divisors (1).

228771859 is an equidigital number, since it uses as much as digits as its factorization.

228771859 is an evil number, because the sum of its binary digits is even.

The product of its digits is 564480, while the sum is 49.

The square root of 228771859 is about 15125.2060812407. The cubic root of 228771859 is about 611.6000802949.

The spelling of 228771859 in words is "two hundred twenty-eight million, seven hundred seventy-one thousand, eight hundred fifty-nine".