28558163 has 2 divisors, whose sum is σ = 28558164. Its totient is φ = 28558162.

The previous prime is 28558139. The next prime is 28558171. The reversal of 28558163 is 36185582.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28558163 - 2¹⁸ = 28296019 is a prime.

It is not a weakly prime, because it can be changed into another prime (28558133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14279081 + 14279082.

It is an arithmetic number, because the mean of its divisors is an integer number (14279082).

Almost surely, 2^28558163 is an apocalyptic number.

28558163 is a deficient number, since it is larger than the sum of its proper divisors (1).

28558163 is an equidigital number, since it uses as much as digits as its factorization.

28558163 is an evil number, because the sum of its binary digits is even.

The product of its digits is 57600, while the sum is 38.

The square root of 28558163 is about 5343.9838135982. The cubic root of 28558163 is about 305.6633880907.

The spelling of 28558163 in words is "twenty-eight million, five hundred fifty-eight thousand, one hundred sixty-three".