1286967 has 16 divisors (see below), whose sum is σ = 1906560. Its totient is φ = 765600.

The previous prime is 1286959. The next prime is 1286969. The reversal of 1286967 is 7696821.

It is not a de Polignac number, because 1286967 - 2³ = 1286959 is a prime.

1286967 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1286969) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1617 + ... + 2277.

It is an arithmetic number, because the mean of its divisors is an integer number (119160).

2^1286967 is an apocalyptic number.

1286967 is a deficient number, since it is larger than the sum of its proper divisors (619593).

1286967 is a wasteful number, since it uses less digits than its factorization.

1286967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 734.

The product of its digits is 36288, while the sum is 39.

The square root of 1286967 is about 1134.4456796163. The cubic root of 1286967 is about 108.7733415349.

The spelling of 1286967 in words is "one million, two hundred eighty-six thousand, nine hundred sixty-seven".