28998003 has 4 divisors (see below), whose sum is σ = 38664008. Its totient is φ = 19332000.

The previous prime is 28998001. The next prime is 28998017. The reversal of 28998003 is 30089982.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 28998003 - 2¹ = 28998001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28998001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4832998 + ... + 4833003.

It is an arithmetic number, because the mean of its divisors is an integer number (9666002).

Almost surely, 2^28998003 is an apocalyptic number.

28998003 is a deficient number, since it is larger than the sum of its proper divisors (9666005).

28998003 is an equidigital number, since it uses as much as digits as its factorization.

28998003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9666004.

The product of its (nonzero) digits is 31104, while the sum is 39.

The square root of 28998003 is about 5384.9793871472. The cubic root of 28998003 is about 307.2246302036.

The spelling of 28998003 in words is "twenty-eight million, nine hundred ninety-eight thousand, three".