20357027 has 2 divisors, whose sum is σ = 20357028. Its totient is φ = 20357026.

The previous prime is 20357009. The next prime is 20357081. The reversal of 20357027 is 72075302.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20357027 - 2¹⁴ = 20340643 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20356987 and 20357005.

It is not a weakly prime, because it can be changed into another prime (20357527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10178513 + 10178514.

It is an arithmetic number, because the mean of its divisors is an integer number (10178514).

Almost surely, 2^20357027 is an apocalyptic number.

20357027 is a deficient number, since it is larger than the sum of its proper divisors (1).

20357027 is an equidigital number, since it uses as much as digits as its factorization.

20357027 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2940, while the sum is 26.

The square root of 20357027 is about 4511.8762172737. The cubic root of 20357027 is about 273.0474453178.

The spelling of 20357027 in words is "twenty million, three hundred fifty-seven thousand, twenty-seven".