20527867 has 2 divisors, whose sum is σ = 20527868. Its totient is φ = 20527866.

The previous prime is 20527849. The next prime is 20527877. The reversal of 20527867 is 76872502.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20527867 - 2⁷ = 20527739 is a prime.

It is not a weakly prime, because it can be changed into another prime (20527817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10263933 + 10263934.

It is an arithmetic number, because the mean of its divisors is an integer number (10263934).

Almost surely, 2^20527867 is an apocalyptic number.

20527867 is a deficient number, since it is larger than the sum of its proper divisors (1).

20527867 is an equidigital number, since it uses as much as digits as its factorization.

20527867 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 47040, while the sum is 37.

The square root of 20527867 is about 4530.7689192895. The cubic root of 20527867 is about 273.8091403539.

The spelling of 20527867 in words is "twenty million, five hundred twenty-seven thousand, eight hundred sixty-seven".