841664833 has 2 divisors, whose sum is σ = 841664834. Its totient is φ = 841664832.

The previous prime is 841664827. The next prime is 841664881. The reversal of 841664833 is 338466148.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 502073649 + 339591184 = 22407^2 + 18428^2 .

It is a cyclic number.

It is not a de Polignac number, because 841664833 - 2⁵ = 841664801 is a prime.

It is a super-2 number, since 2×841664833² = 1416799382217835778, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 841664833.

It is not a weakly prime, because it can be changed into another prime (841664893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 420832416 + 420832417.

It is an arithmetic number, because the mean of its divisors is an integer number (420832417).

Almost surely, 2^841664833 is an apocalyptic number.

It is an amenable number.

841664833 is a deficient number, since it is larger than the sum of its proper divisors (1).

841664833 is an equidigital number, since it uses as much as digits as its factorization.

841664833 is an evil number, because the sum of its binary digits is even.

The product of its digits is 331776, while the sum is 43.

The square root of 841664833 is about 29011.4603734455. The cubic root of 841664833 is about 944.1617317367.

The spelling of 841664833 in words is "eight hundred forty-one million, six hundred sixty-four thousand, eight hundred thirty-three".