8539091 has 6 divisors (see below), whose sum is σ = 9386076. Its totient is φ = 7762700.

The previous prime is 8539087. The next prime is 8539093. The reversal of 8539091 is 1909358.

It is not a de Polignac number, because 8539091 - 2² = 8539087 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8539093) 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 in 5 ways as a sum of consecutive naturals, for example, 35165 + ... + 35406.

It is an arithmetic number, because the mean of its divisors is an integer number (1564346).

Almost surely, 2^8539091 is an apocalyptic number.

8539091 is a deficient number, since it is larger than the sum of its proper divisors (846985).

8539091 is a wasteful number, since it uses less digits than its factorization.

8539091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70593 (or 70582 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 35.

The square root of 8539091 is about 2922.1723084035. The cubic root of 8539091 is about 204.3951315791.

The spelling of 8539091 in words is "eight million, five hundred thirty-nine thousand, ninety-one".