20020207 has 2 divisors, whose sum is σ = 20020208. Its totient is φ = 20020206.

The previous prime is 20020199. The next prime is 20020223. The reversal of 20020207 is 70202002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20020207 - 2³ = 20020199 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20020267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10010103 + 10010104.

It is an arithmetic number, because the mean of its divisors is an integer number (10010104).

Almost surely, 2^20020207 is an apocalyptic number.

20020207 is a deficient number, since it is larger than the sum of its proper divisors (1).

20020207 is an equidigital number, since it uses as much as digits as its factorization.

20020207 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56, while the sum is 13.

The square root of 20020207 is about 4474.3945959202. The cubic root of 20020207 is about 271.5331479503.

Adding to 20020207 its reverse (70202002), we get a palindrome (90222209).

The spelling of 20020207 in words is "twenty million, twenty thousand, two hundred seven".