1268347 has 4 divisors (see below), whose sum is σ = 1272240. Its totient is φ = 1264456.

The previous prime is 1268341. The next prime is 1268357. The reversal of 1268347 is 7438621.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1268347 is a prime.

It is a super-2 number, since 2×1268347² = 3217408224818, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a d-powerful number, because it can be written as 1 + 2¹⁷ + 6⁷ + 8⁵ + 3 + 4⁵ + 7⁷ .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1268341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1408 + ... + 2125.

It is an arithmetic number, because the mean of its divisors is an integer number (318060).

2^1268347 is an apocalyptic number.

1268347 is a deficient number, since it is larger than the sum of its proper divisors (3893).

1268347 is an equidigital number, since it uses as much as digits as its factorization.

1268347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3892.

The product of its digits is 8064, while the sum is 31.

The square root of 1268347 is about 1126.2091280042. The cubic root of 1268347 is about 108.2462089782.

The spelling of 1268347 in words is "one million, two hundred sixty-eight thousand, three hundred forty-seven".