28864201 has 2 divisors, whose sum is σ = 28864202. Its totient is φ = 28864200.

The previous prime is 28864177. The next prime is 28864207. The reversal of 28864201 is 10246882.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23270976 + 5593225 = 4824^2 + 2365^2 .

It is a cyclic number.

It is not a de Polignac number, because 28864201 - 2¹⁵ = 28831433 is a prime.

It is not a weakly prime, because it can be changed into another prime (28864207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14432100 + 14432101.

It is an arithmetic number, because the mean of its divisors is an integer number (14432101).

Almost surely, 2^28864201 is an apocalyptic number.

It is an amenable number.

28864201 is a deficient number, since it is larger than the sum of its proper divisors (1).

28864201 is an equidigital number, since it uses as much as digits as its factorization.

28864201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6144, while the sum is 31.

The square root of 28864201 is about 5372.5413911854. The cubic root of 28864201 is about 306.7513716601.

The spelling of 28864201 in words is "twenty-eight million, eight hundred sixty-four thousand, two hundred one".