230728577 has 2 divisors, whose sum is σ = 230728578. Its totient is φ = 230728576.

The previous prime is 230728513. The next prime is 230728627. The reversal of 230728577 is 775827032.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 132342016 + 98386561 = 11504^2 + 9919^2 .

It is a cyclic number.

It is not a de Polignac number, because 230728577 - 2⁶ = 230728513 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (230728507) 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, 115364288 + 115364289.

It is an arithmetic number, because the mean of its divisors is an integer number (115364289).

Almost surely, 2^230728577 is an apocalyptic number.

It is an amenable number.

230728577 is a deficient number, since it is larger than the sum of its proper divisors (1).

230728577 is an equidigital number, since it uses as much as digits as its factorization.

230728577 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 164640, while the sum is 41.

The square root of 230728577 is about 15189.7523679618. The cubic root of 230728577 is about 613.3388330149.

The spelling of 230728577 in words is "two hundred thirty million, seven hundred twenty-eight thousand, five hundred seventy-seven".