28729583 has 2 divisors, whose sum is σ = 28729584. Its totient is φ = 28729582.

The previous prime is 28729567. The next prime is 28729601. The reversal of 28729583 is 38592782.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28729583 - 2⁴ = 28729567 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28729543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14364791 + 14364792.

It is an arithmetic number, because the mean of its divisors is an integer number (14364792).

Almost surely, 2^28729583 is an apocalyptic number.

28729583 is a deficient number, since it is larger than the sum of its proper divisors (1).

28729583 is an equidigital number, since it uses as much as digits as its factorization.

28729583 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 241920, while the sum is 44.

The square root of 28729583 is about 5359.9984141789. The cubic root of 28729583 is about 306.2737486512.

The spelling of 28729583 in words is "twenty-eight million, seven hundred twenty-nine thousand, five hundred eighty-three".