20386337 has 2 divisors, whose sum is σ = 20386338. Its totient is φ = 20386336.

The previous prime is 20386319. The next prime is 20386339. The reversal of 20386337 is 73368302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16638241 + 3748096 = 4079^2 + 1936^2 .

It is a cyclic number.

It is not a de Polignac number, because 20386337 - 2⁶ = 20386273 is a prime.

Together with 20386339, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (20386339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10193168 + 10193169.

It is an arithmetic number, because the mean of its divisors is an integer number (10193169).

Almost surely, 2^20386337 is an apocalyptic number.

It is an amenable number.

20386337 is a deficient number, since it is larger than the sum of its proper divisors (1).

20386337 is an equidigital number, since it uses as much as digits as its factorization.

20386337 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144, while the sum is 32.

The square root of 20386337 is about 4515.1231433927. The cubic root of 20386337 is about 273.1784268340.

The spelling of 20386337 in words is "twenty million, three hundred eighty-six thousand, three hundred thirty-seven".