8469993893 has 2 divisors, whose sum is σ = 8469993894. Its totient is φ = 8469993892.

The previous prime is 8469993863. The next prime is 8469993911. The reversal of 8469993893 is 3983999648.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4540333924 + 3929659969 = 67382^2 + 62687^2 .

It is a cyclic number.

It is not a de Polignac number, because 8469993893 - 2²⁴ = 8453216677 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8469993853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4234996946 + 4234996947.

It is an arithmetic number, because the mean of its divisors is an integer number (4234996947).

Almost surely, 2^8469993893 is an apocalyptic number.

It is an amenable number.

8469993893 is a deficient number, since it is larger than the sum of its proper divisors (1).

8469993893 is an equidigital number, since it uses as much as digits as its factorization.

8469993893 is an evil number, because the sum of its binary digits is even.

The product of its digits is 90699264, while the sum is 68.

The square root of 8469993893 is about 92032.5697402827. The cubic root of 8469993893 is about 2038.4232572311.

The spelling of 8469993893 in words is "eight billion, four hundred sixty-nine million, nine hundred ninety-three thousand, eight hundred ninety-three".