28733003 has 8 divisors (see below), whose sum is σ = 32288928. Its totient is φ = 25369344.

The previous prime is 28732999. The next prime is 28733021. The reversal of 28733003 is 30033782.

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

It is not a de Polignac number, because 28733003 - 2² = 28732999 is a prime.

It is a super-2 number, since 2×28733003² = 1651170922796018, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28733303) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47750 + ... + 48347.

It is an arithmetic number, because the mean of its divisors is an integer number (4036116).

Almost surely, 2^28733003 is an apocalyptic number.

28733003 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

28733003 is a deficient number, since it is larger than the sum of its proper divisors (3555925).

28733003 is a wasteful number, since it uses less digits than its factorization.

28733003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96133.

The product of its (nonzero) digits is 3024, while the sum is 26.

The square root of 28733003 is about 5360.3174346302. The cubic root of 28733003 is about 306.2859012195.

Adding to 28733003 its reverse (30033782), we get a palindrome (58766785).

The spelling of 28733003 in words is "twenty-eight million, seven hundred thirty-three thousand, three".