20060009 has 2 divisors, whose sum is σ = 20060010. Its totient is φ = 20060008.

The previous prime is 20060003. The next prime is 20060087. The reversal of 20060009 is 90006002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18490000 + 1570009 = 4300^2 + 1253^2 .

It is a cyclic number.

It is not a de Polignac number, because 20060009 - 2¹² = 20055913 is a prime.

It is a super-2 number, since 2×20060009² = 804807922160162, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (20060003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10030004 + 10030005.

It is an arithmetic number, because the mean of its divisors is an integer number (10030005).

Almost surely, 2^20060009 is an apocalyptic number.

It is an amenable number.

20060009 is a deficient number, since it is larger than the sum of its proper divisors (1).

20060009 is an equidigital number, since it uses as much as digits as its factorization.

20060009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 20060009 is about 4478.8401400363. The cubic root of 20060009 is about 271.7129730659.

The spelling of 20060009 in words is "twenty million, sixty thousand, nine".