28838003 has 8 divisors (see below), whose sum is σ = 29294160. Its totient is φ = 28385280.

The previous prime is 28837987. The next prime is 28838009. The reversal of 28838003 is 30083882.

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 28838003 - 2⁴ = 28837987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28838009) 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 7 ways as a sum of consecutive naturals, for example, 19763 + ... + 21171.

It is an arithmetic number, because the mean of its divisors is an integer number (3661770).

Almost surely, 2^28838003 is an apocalyptic number.

28838003 is a deficient number, since it is larger than the sum of its proper divisors (456157).

28838003 is a wasteful number, since it uses less digits than its factorization.

28838003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1717.

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 28838003 is about 5370.1026992042. The cubic root of 28838003 is about 306.6585380381.

The spelling of 28838003 in words is "twenty-eight million, eight hundred thirty-eight thousand, three".