28916003 has 2 divisors, whose sum is σ = 28916004. Its totient is φ = 28916002.

The previous prime is 28915993. The next prime is 28916033. The reversal of 28916003 is 30061982.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28916003 - 2¹⁶ = 28850467 is a prime.

It is a super-2 number, since 2×28916003² = 1672270458992018, which contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (28916033) 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 as a sum of consecutive naturals, namely, 14458001 + 14458002.

It is an arithmetic number, because the mean of its divisors is an integer number (14458002).

Almost surely, 2^28916003 is an apocalyptic number.

28916003 is a deficient number, since it is larger than the sum of its proper divisors (1).

28916003 is an equidigital number, since it uses as much as digits as its factorization.

28916003 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 28916003 is about 5377.3602259845. The cubic root of 28916003 is about 306.9347688263.

Adding to 28916003 its reverse (30061982), we get a palindrome (58977985).

The spelling of 28916003 in words is "twenty-eight million, nine hundred sixteen thousand, three".