228708673 has 2 divisors, whose sum is σ = 228708674. Its totient is φ = 228708672.

The previous prime is 228708661. The next prime is 228708691. The reversal of 228708673 is 376807822.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 137639824 + 91068849 = 11732^2 + 9543^2 .

It is a cyclic number.

It is not a de Polignac number, because 228708673 - 2¹³ = 228700481 is a prime.

It is not a weakly prime, because it can be changed into another prime (228708653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114354336 + 114354337.

It is an arithmetic number, because the mean of its divisors is an integer number (114354337).

Almost surely, 2^228708673 is an apocalyptic number.

It is an amenable number.

228708673 is a deficient number, since it is larger than the sum of its proper divisors (1).

228708673 is an equidigital number, since it uses as much as digits as its factorization.

228708673 is an evil number, because the sum of its binary digits is even.

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

The square root of 228708673 is about 15123.1171720648. The cubic root of 228708673 is about 611.5437678311.

The spelling of 228708673 in words is "two hundred twenty-eight million, seven hundred eight thousand, six hundred seventy-three".