228748693 has 2 divisors, whose sum is σ = 228748694. Its totient is φ = 228748692.

The previous prime is 228748679. The next prime is 228748711. The reversal of 228748693 is 396847822.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 226261764 + 2486929 = 15042^2 + 1577^2 .

It is a cyclic number.

It is not a de Polignac number, because 228748693 - 2¹⁷ = 228617621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (228748603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114374346 + 114374347.

It is an arithmetic number, because the mean of its divisors is an integer number (114374347).

Almost surely, 2^228748693 is an apocalyptic number.

It is an amenable number.

228748693 is a deficient number, since it is larger than the sum of its proper divisors (1).

228748693 is an equidigital number, since it uses as much as digits as its factorization.

228748693 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1161216, while the sum is 49.

The square root of 228748693 is about 15124.4402541053. The cubic root of 228748693 is about 611.5794355562.

It can be divided in two parts, 228748 and 693, that added together give a square (229441 = 479²).

The spelling of 228748693 in words is "two hundred twenty-eight million, seven hundred forty-eight thousand, six hundred ninety-three".