8499091 has 4 divisors (see below), whose sum is σ = 8542000. Its totient is φ = 8456184.

The previous prime is 8499089. The next prime is 8499097. The reversal of 8499091 is 1909948.

8499091 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 8499091 - 2¹ = 8499089 is a prime.

It is a Duffinian number.

8499091 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (8499097) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21156 + ... + 21553.

It is an arithmetic number, because the mean of its divisors is an integer number (2135500).

Almost surely, 2^8499091 is an apocalyptic number.

8499091 is a deficient number, since it is larger than the sum of its proper divisors (42909).

8499091 is a wasteful number, since it uses less digits than its factorization.

8499091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42908.

The product of its (nonzero) digits is 23328, while the sum is 40.

The square root of 8499091 is about 2915.3200510407. The cubic root of 8499091 is about 204.0754798865.

The spelling of 8499091 in words is "eight million, four hundred ninety-nine thousand, ninety-one".