20003299 has 8 divisors (see below), whose sum is σ = 20528640. Its totient is φ = 19480776.

The previous prime is 20003297. The next prime is 20003317. The reversal of 20003299 is 99230002.

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 20003299 - 2¹ = 20003297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20003293) 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 in 7 ways as a sum of consecutive naturals, for example, 27462 + ... + 28180.

It is an arithmetic number, because the mean of its divisors is an integer number (2566080).

Almost surely, 2^20003299 is an apocalyptic number.

20003299 is a deficient number, since it is larger than the sum of its proper divisors (525341).

20003299 is an equidigital number, since it uses as much as digits as its factorization.

20003299 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1409.

The product of its (nonzero) digits is 972, while the sum is 25.

The square root of 20003299 is about 4472.5047792037. The cubic root of 20003299 is about 271.4566856118.

It can be divided in two parts, 20003 and 299, that added together give a palindrome (20302).

The spelling of 20003299 in words is "twenty million, three thousand, two hundred ninety-nine".