228080287 has 2 divisors, whose sum is σ = 228080288. Its totient is φ = 228080286.

The previous prime is 228080269. The next prime is 228080297. The reversal of 228080287 is 782080822.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-228080287 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (228080227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114040143 + 114040144.

It is an arithmetic number, because the mean of its divisors is an integer number (114040144).

Almost surely, 2^228080287 is an apocalyptic number.

228080287 is a deficient number, since it is larger than the sum of its proper divisors (1).

228080287 is an equidigital number, since it uses as much as digits as its factorization.

228080287 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28672, while the sum is 37.

The square root of 228080287 is about 15102.3272047721. The cubic root of 228080287 is about 610.9831739808.

The spelling of 228080287 in words is "two hundred twenty-eight million, eighty thousand, two hundred eighty-seven".