228678503 has 2 divisors, whose sum is σ = 228678504. Its totient is φ = 228678502.

The previous prime is 228678479. The next prime is 228678511. The reversal of 228678503 is 305876822.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 228678503 - 2¹⁰ = 228677479 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (228678523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114339251 + 114339252.

It is an arithmetic number, because the mean of its divisors is an integer number (114339252).

Almost surely, 2^228678503 is an apocalyptic number.

228678503 is a deficient number, since it is larger than the sum of its proper divisors (1).

228678503 is an equidigital number, since it uses as much as digits as its factorization.

228678503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 161280, while the sum is 41.

The square root of 228678503 is about 15122.1196596244. The cubic root of 228678503 is about 611.5168761431.

The spelling of 228678503 in words is "two hundred twenty-eight million, six hundred seventy-eight thousand, five hundred three".