1247327 has 2 divisors, whose sum is σ = 1247328. Its totient is φ = 1247326.

The previous prime is 1247321. The next prime is 1247329. The reversal of 1247327 is 7237421.

It is a strong prime.

It is an emirp because it is prime and its reverse (7237421) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1247327 - 2⁶ = 1247263 is a prime.

Together with 1247329, 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 = 1247296 and 1247305.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1247321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 623663 + 623664.

It is an arithmetic number, because the mean of its divisors is an integer number (623664).

2^1247327 is an apocalyptic number.

1247327 is a deficient number, since it is larger than the sum of its proper divisors (1).

1247327 is an equidigital number, since it uses as much as digits as its factorization.

1247327 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2352, while the sum is 26.

The square root of 1247327 is about 1116.8379470630. The cubic root of 1247327 is about 107.6448956525.

The spelling of 1247327 in words is "one million, two hundred forty-seven thousand, three hundred twenty-seven".