1293947 has 2 divisors, whose sum is σ = 1293948. Its totient is φ = 1293946.

The previous prime is 1293931. The next prime is 1293949. The reversal of 1293947 is 7493921.

It is a strong prime.

It is an emirp because it is prime and its reverse (7493921) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1293947 - 2⁴ = 1293931 is a prime.

Together with 1293949, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1293949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 646973 + 646974.

It is an arithmetic number, because the mean of its divisors is an integer number (646974).

2^1293947 is an apocalyptic number.

1293947 is a deficient number, since it is larger than the sum of its proper divisors (1).

1293947 is an equidigital number, since it uses as much as digits as its factorization.

1293947 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13608, while the sum is 35.

The square root of 1293947 is about 1137.5179119469. The cubic root of 1293947 is about 108.9696349500.

The spelling of 1293947 in words is "one million, two hundred ninety-three thousand, nine hundred forty-seven".