20960005 has 16 divisors (see below), whose sum is σ = 27604800. Its totient is φ = 15151360.

The previous prime is 20959987. The next prime is 20960029. The reversal of 20960005 is 50006902.

It is not a de Polignac number, because 20960005 - 2⁵ = 20959973 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8781 + ... + 10909.

It is an arithmetic number, because the mean of its divisors is an integer number (1725300).

Almost surely, 2^20960005 is an apocalyptic number.

It is an amenable number.

20960005 is a deficient number, since it is larger than the sum of its proper divisors (6644795).

20960005 is a wasteful number, since it uses less digits than its factorization.

20960005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2324.

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 20960005 is about 4578.2098029688. The cubic root of 20960005 is about 275.7171584365.

Adding to 20960005 its reverse (50006902), we get a palindrome (70966907).

The spelling of 20960005 in words is "twenty million, nine hundred sixty thousand, five".