228253789 has 2 divisors, whose sum is σ = 228253790. Its totient is φ = 228253788.

The previous prime is 228253757. The next prime is 228253793. The reversal of 228253789 is 987352822.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 227496889 + 756900 = 15083^2 + 870^2 .

It is a cyclic number.

It is not a de Polignac number, because 228253789 - 2⁵ = 228253757 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (228253709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114126894 + 114126895.

It is an arithmetic number, because the mean of its divisors is an integer number (114126895).

Almost surely, 2^228253789 is an apocalyptic number.

It is an amenable number.

228253789 is a deficient number, since it is larger than the sum of its proper divisors (1).

228253789 is an equidigital number, since it uses as much as digits as its factorization.

228253789 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 483840, while the sum is 46.

The square root of 228253789 is about 15108.0703268154. The cubic root of 228253789 is about 611.1380608635.

The spelling of 228253789 in words is "two hundred twenty-eight million, two hundred fifty-three thousand, seven hundred eighty-nine".