28930567 has 2 divisors, whose sum is σ = 28930568. Its totient is φ = 28930566.

The previous prime is 28930501. The next prime is 28930571. The reversal of 28930567 is 76503982.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28930567 - 2¹¹ = 28928519 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28937567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14465283 + 14465284.

It is an arithmetic number, because the mean of its divisors is an integer number (14465284).

Almost surely, 2^28930567 is an apocalyptic number.

28930567 is a deficient number, since it is larger than the sum of its proper divisors (1).

28930567 is an equidigital number, since it uses as much as digits as its factorization.

28930567 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90720, while the sum is 40.

The square root of 28930567 is about 5378.7142515661. The cubic root of 28930567 is about 306.9862910196.

The spelling of 28930567 in words is "twenty-eight million, nine hundred thirty thousand, five hundred sixty-seven".