1270667 has 2 divisors, whose sum is σ = 1270668. Its totient is φ = 1270666.

The previous prime is 1270657. The next prime is 1270669. The reversal of 1270667 is 7660721.

It is a strong prime.

It is an emirp because it is prime and its reverse (7660721) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1270667 - 2⁴ = 1270651 is a prime.

It is a super-2 number, since 2×1270667² = 3229189249778, which contains 22 as substring.

Together with 1270669, 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 (1270669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 635333 + 635334.

It is an arithmetic number, because the mean of its divisors is an integer number (635334).

2^1270667 is an apocalyptic number.

1270667 is a deficient number, since it is larger than the sum of its proper divisors (1).

1270667 is an equidigital number, since it uses as much as digits as its factorization.

1270667 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3528, while the sum is 29.

The square root of 1270667 is about 1127.2386615087. The cubic root of 1270667 is about 108.3121683834.

The spelling of 1270667 in words is "one million, two hundred seventy thousand, six hundred sixty-seven".