19700027 has 2 divisors, whose sum is σ = 19700028. Its totient is φ = 19700026.

The previous prime is 19699997. The next prime is 19700033. The reversal of 19700027 is 72000791.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 19700027 - 2¹⁰ = 19699003 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 19699969 and 19700005.

It is not a weakly prime, because it can be changed into another prime (19703027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9850013 + 9850014.

It is an arithmetic number, because the mean of its divisors is an integer number (9850014).

Almost surely, 2^19700027 is an apocalyptic number.

19700027 is a deficient number, since it is larger than the sum of its proper divisors (1).

19700027 is an equidigital number, since it uses as much as digits as its factorization.

19700027 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 882, while the sum is 26.

The square root of 19700027 is about 4438.4712458233. The cubic root of 19700027 is about 270.0778330707.

The spelling of 19700027 in words is "nineteen million, seven hundred thousand, twenty-seven".