20600001 has 20 divisors (see below), whose sum is σ = 30921792. Its totient is φ = 13666968.

The previous prime is 20599993. The next prime is 20600003. The reversal of 20600001 is 10000602.

It is not a de Polignac number, because 20600001 - 2³ = 20599993 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (20600003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 20820 + ... + 21786.

Almost surely, 2^20600001 is an apocalyptic number.

It is an amenable number.

20600001 is a deficient number, since it is larger than the sum of its proper divisors (10321791).

20600001 is an equidigital number, since it uses as much as digits as its factorization.

20600001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1242 (or 1233 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 20600001 is about 4538.7223973272. The cubic root of 20600001 is about 274.1294830851.

Adding to 20600001 its reverse (10000602), we get a palindrome (30600603).

The spelling of 20600001 in words is "twenty million, six hundred thousand, one".