20386207 has 2 divisors, whose sum is σ = 20386208. Its totient is φ = 20386206.

The previous prime is 20386169. The next prime is 20386229. The reversal of 20386207 is 70268302.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20386207 - 2¹¹ = 20384159 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20386237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10193103 + 10193104.

It is an arithmetic number, because the mean of its divisors is an integer number (10193104).

Almost surely, 2^20386207 is an apocalyptic number.

20386207 is a deficient number, since it is larger than the sum of its proper divisors (1).

20386207 is an equidigital number, since it uses as much as digits as its factorization.

20386207 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 20386207 is about 4515.1087473061. The cubic root of 20386207 is about 273.1778461628.

The spelling of 20386207 in words is "twenty million, three hundred eighty-six thousand, two hundred seven".