20960003 has 4 divisors (see below), whose sum is σ = 21085680. Its totient is φ = 20834328.

The previous prime is 20959987. The next prime is 20960029. The reversal of 20960003 is 30006902.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30006902 = 2 ⋅15003451.

It is a cyclic number.

It is not a de Polignac number, because 20960003 - 2⁴ = 20959987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20960033) 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, 62588 + ... + 62921.

It is an arithmetic number, because the mean of its divisors is an integer number (5271420).

Almost surely, 2^20960003 is an apocalyptic number.

20960003 is a deficient number, since it is larger than the sum of its proper divisors (125677).

20960003 is a wasteful number, since it uses less digits than its factorization.

20960003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125676.

The product of its (nonzero) digits is 324, while the sum is 20.

The square root of 20960003 is about 4578.2095845428. The cubic root of 20960003 is about 275.7171496668.

Adding to 20960003 its reverse (30006902), we get a palindrome (50966905).

The spelling of 20960003 in words is "twenty million, nine hundred sixty thousand, three".