1347667 has 2 divisors, whose sum is σ = 1347668. Its totient is φ = 1347666.

The previous prime is 1347637. The next prime is 1347679. The reversal of 1347667 is 7667431.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1347667 is a prime.

1347667 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (1347617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 673833 + 673834.

It is an arithmetic number, because the mean of its divisors is an integer number (673834).

2^1347667 is an apocalyptic number.

1347667 is a deficient number, since it is larger than the sum of its proper divisors (1).

1347667 is an equidigital number, since it uses as much as digits as its factorization.

1347667 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21168, while the sum is 34.

The square root of 1347667 is about 1160.8906063880. The cubic root of 1347667 is about 110.4572427274.

The spelling of 1347667 in words is "one million, three hundred forty-seven thousand, six hundred sixty-seven".