228023077 has 2 divisors, whose sum is σ = 228023078. Its totient is φ = 228023076.

The previous prime is 228023071. The next prime is 228023087. The reversal of 228023077 is 770320822.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 226382116 + 1640961 = 15046^2 + 1281^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-228023077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (228023071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114011538 + 114011539.

It is an arithmetic number, because the mean of its divisors is an integer number (114011539).

Almost surely, 2^228023077 is an apocalyptic number.

It is an amenable number.

228023077 is a deficient number, since it is larger than the sum of its proper divisors (1).

228023077 is an equidigital number, since it uses as much as digits as its factorization.

228023077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9408, while the sum is 31.

The square root of 228023077 is about 15100.4330070366. The cubic root of 228023077 is about 610.9320848507.

Adding to 228023077 its reverse (770320822), we get a palindrome (998343899).

The spelling of 228023077 in words is "two hundred twenty-eight million, twenty-three thousand, seventy-seven".