227788889 has 2 divisors, whose sum is σ = 227788890. Its totient is φ = 227788888.

The previous prime is 227788877. The next prime is 227788901. The reversal of 227788889 is 988887722.

227788889 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (227788877) and next prime (227788901).

It can be written as a sum of positive squares in only one way, i.e., 227014489 + 774400 = 15067^2 + 880^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-227788889 is a prime.

It is a plaindrome in base 10.

It is not a weakly prime, because it can be changed into another prime (227788289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113894444 + 113894445.

It is an arithmetic number, because the mean of its divisors is an integer number (113894445).

Almost surely, 2^227788889 is an apocalyptic number.

It is an amenable number.

227788889 is a deficient number, since it is larger than the sum of its proper divisors (1).

227788889 is an equidigital number, since it uses as much as digits as its factorization.

227788889 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7225344, while the sum is 59.

The square root of 227788889 is about 15092.6766678413. The cubic root of 227788889 is about 610.7228633788.

The spelling of 227788889 in words is "two hundred twenty-seven million, seven hundred eighty-eight thousand, eight hundred eighty-nine".