1297027 has 2 divisors, whose sum is σ = 1297028. Its totient is φ = 1297026.

The previous prime is 1297019. The next prime is 1297057. The reversal of 1297027 is 7207921.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1297027 - 2³ = 1297019 is a prime.

It is a Chen prime.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 1296986 and 1297004.

It is not a weakly prime, because it can be changed into another prime (1297057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 648513 + 648514.

It is an arithmetic number, because the mean of its divisors is an integer number (648514).

2^1297027 is an apocalyptic number.

1297027 is a deficient number, since it is larger than the sum of its proper divisors (1).

1297027 is an equidigital number, since it uses as much as digits as its factorization.

1297027 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1764, while the sum is 28.

The square root of 1297027 is about 1138.8709321078. The cubic root of 1297027 is about 109.0560270841.

The spelling of 1297027 in words is "one million, two hundred ninety-seven thousand, twenty-seven".