864197833 has 2 divisors, whose sum is σ = 864197834. Its totient is φ = 864197832.

The previous prime is 864197821. The next prime is 864197849. The reversal of 864197833 is 338791468.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 650658064 + 213539769 = 25508^2 + 14613^2 .

It is a cyclic number.

It is not a de Polignac number, because 864197833 - 2²⁹ = 327326921 is a prime.

It is not a weakly prime, because it can be changed into another prime (864117833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 432098916 + 432098917.

It is an arithmetic number, because the mean of its divisors is an integer number (432098917).

Almost surely, 2^864197833 is an apocalyptic number.

It is an amenable number.

864197833 is a deficient number, since it is larger than the sum of its proper divisors (1).

864197833 is an equidigital number, since it uses as much as digits as its factorization.

864197833 is an evil number, because the sum of its binary digits is even.

The product of its digits is 870912, while the sum is 49.

The square root of 864197833 is about 29397.2419284531. The cubic root of 864197833 is about 952.5133201500.

The spelling of 864197833 in words is "eight hundred sixty-four million, one hundred ninety-seven thousand, eight hundred thirty-three".