28282003 has 6 divisors (see below), whose sum is σ = 28975452. Its totient is φ = 27590220.

The previous prime is 28281991. The next prime is 28282021. The reversal of 28282003 is 30028282.

It is not a de Polignac number, because 28282003 - 2⁵ = 28281971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28282043) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 34468 + ... + 35278.

It is an arithmetic number, because the mean of its divisors is an integer number (4829242).

Almost surely, 2^28282003 is an apocalyptic number.

28282003 is a deficient number, since it is larger than the sum of its proper divisors (693449).

28282003 is an frugal number, since it uses more digits than its factorization.

28282003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1665 (or 854 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 28282003 is about 5318.0826432089. The cubic root of 28282003 is about 304.6749309196.

The spelling of 28282003 in words is "twenty-eight million, two hundred eighty-two thousand, three".