227730077 has 2 divisors, whose sum is σ = 227730078. Its totient is φ = 227730076.

The previous prime is 227730047. The next prime is 227730089. The reversal of 227730077 is 770037722.

227730077 is nontrivially palindromic in base 16.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 137499076 + 90231001 = 11726^2 + 9499^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-227730077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (227730047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113865038 + 113865039.

It is an arithmetic number, because the mean of its divisors is an integer number (113865039).

Almost surely, 2^227730077 is an apocalyptic number.

It is an amenable number.

227730077 is a deficient number, since it is larger than the sum of its proper divisors (1).

227730077 is an equidigital number, since it uses as much as digits as its factorization.

227730077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28812, while the sum is 35.

The square root of 227730077 is about 15090.7281799123. The cubic root of 227730077 is about 610.6702987361.

Adding to 227730077 its reverse (770037722), we get a palindrome (997767799).

The spelling of 227730077 in words is "two hundred twenty-seven million, seven hundred thirty thousand, seventy-seven".