1286343 has 12 divisors (see below), whose sum is σ = 1898208. Its totient is φ = 839040.

The previous prime is 1286323. The next prime is 1286359. The reversal of 1286343 is 3436821.

It is a happy number.

1286343 is a `hidden beast` number, since 1 + 28 + 634 + 3 = 666.

It is not a de Polignac number, because 1286343 - 2²⁰ = 237767 is a prime.

1286343 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1286303) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1098 + ... + 1943.

It is an arithmetic number, because the mean of its divisors is an integer number (158184).

2^1286343 is an apocalyptic number.

1286343 is a deficient number, since it is larger than the sum of its proper divisors (611865).

1286343 is a wasteful number, since it uses less digits than its factorization.

1286343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3094 (or 3091 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 1286343 is about 1134.1706220847. The cubic root of 1286343 is about 108.7557587121.

The spelling of 1286343 in words is "one million, two hundred eighty-six thousand, three hundred forty-three".