28580803 has 8 divisors (see below), whose sum is σ = 28946880. Its totient is φ = 28217280.

The previous prime is 28580771. The next prime is 28580819. The reversal of 28580803 is 30808582.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28580803 - 2⁵ = 28580771 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28580003) 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 in 7 ways as a sum of consecutive naturals, for example, 30918 + ... + 31828.

It is an arithmetic number, because the mean of its divisors is an integer number (3618360).

Almost surely, 2^28580803 is an apocalyptic number.

28580803 is a deficient number, since it is larger than the sum of its proper divisors (366077).

28580803 is a wasteful number, since it uses less digits than its factorization.

28580803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1277.

The product of its (nonzero) digits is 15360, while the sum is 34.

The square root of 28580803 is about 5346.1016638294. The cubic root of 28580803 is about 305.7441401475.

The spelling of 28580803 in words is "twenty-eight million, five hundred eighty thousand, eight hundred three".