28958563 has 2 divisors, whose sum is σ = 28958564. Its totient is φ = 28958562.

The previous prime is 28958561. The next prime is 28958647. The reversal of 28958563 is 36585982.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28958563 - 2¹ = 28958561 is a prime.

Together with 28958561, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (28958561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14479281 + 14479282.

It is an arithmetic number, because the mean of its divisors is an integer number (14479282).

Almost surely, 2^28958563 is an apocalyptic number.

28958563 is a deficient number, since it is larger than the sum of its proper divisors (1).

28958563 is an equidigital number, since it uses as much as digits as its factorization.

28958563 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 518400, while the sum is 46.

The square root of 28958563 is about 5381.3161029622. The cubic root of 28958563 is about 307.0852822519.

The spelling of 28958563 in words is "twenty-eight million, nine hundred fifty-eight thousand, five hundred sixty-three".