227440897 has 2 divisors, whose sum is σ = 227440898. Its totient is φ = 227440896.

The previous prime is 227440891. The next prime is 227440919. The reversal of 227440897 is 798044722.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 167857936 + 59582961 = 12956^2 + 7719^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-227440897 is a prime.

It is not a weakly prime, because it can be changed into another prime (227440891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113720448 + 113720449.

It is an arithmetic number, because the mean of its divisors is an integer number (113720449).

Almost surely, 2^227440897 is an apocalyptic number.

It is an amenable number.

227440897 is a deficient number, since it is larger than the sum of its proper divisors (1).

227440897 is an equidigital number, since it uses as much as digits as its factorization.

227440897 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 225792, while the sum is 43.

The square root of 227440897 is about 15081.1437563601. The cubic root of 227440897 is about 610.4117054042.

The spelling of 227440897 in words is "two hundred twenty-seven million, four hundred forty thousand, eight hundred ninety-seven".