28058003 has 6 divisors (see below), whose sum is σ = 29612844. Its totient is φ = 26580924.

The previous prime is 28057979. The next prime is 28058021. The reversal of 28058003 is 30085082.

It is not a de Polignac number, because 28058003 - 2⁸ = 28057747 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28058053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 38501 + ... + 39222.

It is an arithmetic number, because the mean of its divisors is an integer number (4935474).

Almost surely, 2^28058003 is an apocalyptic number.

28058003 is a deficient number, since it is larger than the sum of its proper divisors (1554841).

28058003 is an equidigital number, since it uses as much as digits as its factorization.

28058003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77761 (or 77742 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 28058003 is about 5296.9805549955. The cubic root of 28058003 is about 303.8684326509.

The spelling of 28058003 in words is "twenty-eight million, fifty-eight thousand, three".