6666833 has 2 divisors, whose sum is σ = 6666834. Its totient is φ = 6666832.

The previous prime is 6666797. The next prime is 6666841. The reversal of 6666833 is 3386666.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4068289 + 2598544 = 2017^2 + 1612^2 .

It is a cyclic number.

It is not a de Polignac number, because 6666833 - 2⁶ = 6666769 is a prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (6666883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3333416 + 3333417.

It is an arithmetic number, because the mean of its divisors is an integer number (3333417).

Almost surely, 2^6666833 is an apocalyptic number.

It is an amenable number.

6666833 is a deficient number, since it is larger than the sum of its proper divisors (1).

6666833 is an equidigital number, since it uses as much as digits as its factorization.

6666833 is an evil number, because the sum of its binary digits is even.

The product of its digits is 93312, while the sum is 38.

The square root of 6666833 is about 2582.0211075822. The cubic root of 6666833 is about 188.2087710198.

It can be divided in two parts, 6666 and 833, that multiplied together give a triangular number (5552778 = T₃₃₃₂).

The spelling of 6666833 in words is "six million, six hundred sixty-six thousand, eight hundred thirty-three".