227788901 has 2 divisors, whose sum is σ = 227788902. Its totient is φ = 227788900.

The previous prime is 227788889. The next prime is 227788921. The reversal of 227788901 is 109887722.

227788901 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 197824225 + 29964676 = 14065^2 + 5474^2 .

It is a cyclic number.

It is not a de Polignac number, because 227788901 - 2¹⁸ = 227526757 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (227788921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113894450 + 113894451.

It is an arithmetic number, because the mean of its divisors is an integer number (113894451).

Almost surely, 2^227788901 is an apocalyptic number.

It is an amenable number.

227788901 is a deficient number, since it is larger than the sum of its proper divisors (1).

227788901 is an equidigital number, since it uses as much as digits as its factorization.

227788901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 112896, while the sum is 44.

The square root of 227788901 is about 15092.6770653851. The cubic root of 227788901 is about 610.7228741031.

The spelling of 227788901 in words is "two hundred twenty-seven million, seven hundred eighty-eight thousand, nine hundred one".