228077617 has 2 divisors, whose sum is σ = 228077618. Its totient is φ = 228077616.

The previous prime is 228077599. The next prime is 228077639. The reversal of 228077617 is 716770822.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 165920161 + 62157456 = 12881^2 + 7884^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-228077617 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 228077617.

It is not a weakly prime, because it can be changed into another prime (228077677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114038808 + 114038809.

It is an arithmetic number, because the mean of its divisors is an integer number (114038809).

Almost surely, 2^228077617 is an apocalyptic number.

It is an amenable number.

228077617 is a deficient number, since it is larger than the sum of its proper divisors (1).

228077617 is an equidigital number, since it uses as much as digits as its factorization.

228077617 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 65856, while the sum is 40.

The square root of 228077617 is about 15102.2388075411. The cubic root of 228077617 is about 610.9807898329.

It can be divided in two parts, 2280 and 77617, that added together give a palindrome (79897).

The spelling of 228077617 in words is "two hundred twenty-eight million, seventy-seven thousand, six hundred seventeen".