228784877 has 2 divisors, whose sum is σ = 228784878. Its totient is φ = 228784876.

The previous prime is 228784873. The next prime is 228784921. The reversal of 228784877 is 778487822.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 211237156 + 17547721 = 14534^2 + 4189^2 .

It is a cyclic number.

It is not a de Polignac number, because 228784877 - 2² = 228784873 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (228784873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114392438 + 114392439.

It is an arithmetic number, because the mean of its divisors is an integer number (114392439).

Almost surely, 2^228784877 is an apocalyptic number.

It is an amenable number.

228784877 is a deficient number, since it is larger than the sum of its proper divisors (1).

228784877 is an equidigital number, since it uses as much as digits as its factorization.

228784877 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2809856, while the sum is 53.

The square root of 228784877 is about 15125.6364163628. The cubic root of 228784877 is about 611.6116808750.

The spelling of 228784877 in words is "two hundred twenty-eight million, seven hundred eighty-four thousand, eight hundred seventy-seven".