20492027 has 2 divisors, whose sum is σ = 20492028. Its totient is φ = 20492026.

The previous prime is 20491997. The next prime is 20492029. The reversal of 20492027 is 72029402.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20492027 - 2⁶ = 20491963 is a prime.

Together with 20492029, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 20491987 and 20492005.

It is not a weakly prime, because it can be changed into another prime (20492029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10246013 + 10246014.

It is an arithmetic number, because the mean of its divisors is an integer number (10246014).

Almost surely, 2^20492027 is an apocalyptic number.

20492027 is a deficient number, since it is larger than the sum of its proper divisors (1).

20492027 is an equidigital number, since it uses as much as digits as its factorization.

20492027 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 20492027 is about 4526.8120128850. The cubic root of 20492027 is about 273.6496979688.

The spelling of 20492027 in words is "twenty million, four hundred ninety-two thousand, twenty-seven".