8986391 has 2 divisors, whose sum is σ = 8986392. Its totient is φ = 8986390.

The previous prime is 8986381. The next prime is 8986403. The reversal of 8986391 is 1936898.

8986391 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8986391 - 2¹⁴ = 8970007 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8986361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4493195 + 4493196.

It is an arithmetic number, because the mean of its divisors is an integer number (4493196).

Almost surely, 2^8986391 is an apocalyptic number.

8986391 is a deficient number, since it is larger than the sum of its proper divisors (1).

8986391 is an equidigital number, since it uses as much as digits as its factorization.

8986391 is an evil number, because the sum of its binary digits is even.

The product of its digits is 93312, while the sum is 44.

The square root of 8986391 is about 2997.7309752545. The cubic root of 8986391 is about 207.9034854868.

The spelling of 8986391 in words is "eight million, nine hundred eighty-six thousand, three hundred ninety-one".