8394532891 has 2 divisors, whose sum is σ = 8394532892. Its totient is φ = 8394532890.

The previous prime is 8394532859. The next prime is 8394532907. The reversal of 8394532891 is 1982354938.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8394532891 - 2⁵ = 8394532859 is a prime.

It is not a weakly prime, because it can be changed into another prime (8394532831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4197266445 + 4197266446.

It is an arithmetic number, because the mean of its divisors is an integer number (4197266446).

Almost surely, 2^8394532891 is an apocalyptic number.

8394532891 is a deficient number, since it is larger than the sum of its proper divisors (1).

8394532891 is an equidigital number, since it uses as much as digits as its factorization.

8394532891 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1866240, while the sum is 52.

The square root of 8394532891 is about 91621.6835197870. The cubic root of 8394532891 is about 2032.3516060395.

The spelling of 8394532891 in words is "eight billion, three hundred ninety-four million, five hundred thirty-two thousand, eight hundred ninety-one".