1286833 has 2 divisors, whose sum is σ = 1286834. Its totient is φ = 1286832.

The previous prime is 1286821. The next prime is 1286837. The reversal of 1286833 is 3386821.

1286833 is nontrivially palindromic in base 4.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 898704 + 388129 = 948^2 + 623^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1286833 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1286795 and 1286804.

It is not a weakly prime, because it can be changed into another prime (1286837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 643416 + 643417.

It is an arithmetic number, because the mean of its divisors is an integer number (643417).

2^1286833 is an apocalyptic number.

It is an amenable number.

1286833 is a deficient number, since it is larger than the sum of its proper divisors (1).

1286833 is an equidigital number, since it uses as much as digits as its factorization.

1286833 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6912, while the sum is 31.

The square root of 1286833 is about 1134.3866183978. The cubic root of 1286833 is about 108.7695662157.

The spelling of 1286833 in words is "one million, two hundred eighty-six thousand, eight hundred thirty-three".