8485391 has 2 divisors, whose sum is σ = 8485392. Its totient is φ = 8485390.

The previous prime is 8485387. The next prime is 8485403. The reversal of 8485391 is 1935848.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8485391 - 2² = 8485387 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8485331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4242695 + 4242696.

It is an arithmetic number, because the mean of its divisors is an integer number (4242696).

Almost surely, 2^8485391 is an apocalyptic number.

8485391 is a deficient number, since it is larger than the sum of its proper divisors (1).

8485391 is an equidigital number, since it uses as much as digits as its factorization.

8485391 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34560, while the sum is 38.

The square root of 8485391 is about 2912.9694471450. The cubic root of 8485391 is about 203.9657686379.

The spelling of 8485391 in words is "eight million, four hundred eighty-five thousand, three hundred ninety-one".