228044693 has 2 divisors, whose sum is σ = 228044694. Its totient is φ = 228044692.

The previous prime is 228044689. The next prime is 228044723. The reversal of 228044693 is 396440822.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 116488849 + 111555844 = 10793^2 + 10562^2 .

It is a cyclic number.

It is not a de Polignac number, because 228044693 - 2² = 228044689 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (228044623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114022346 + 114022347.

It is an arithmetic number, because the mean of its divisors is an integer number (114022347).

Almost surely, 2^228044693 is an apocalyptic number.

It is an amenable number.

228044693 is a deficient number, since it is larger than the sum of its proper divisors (1).

228044693 is an equidigital number, since it uses as much as digits as its factorization.

228044693 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 82944, while the sum is 38.

The square root of 228044693 is about 15101.1487311396. The cubic root of 228044693 is about 610.9513891697.

The spelling of 228044693 in words is "two hundred twenty-eight million, forty-four thousand, six hundred ninety-three".