8605491 has 4 divisors (see below), whose sum is σ = 11473992. Its totient is φ = 5736992.

The previous prime is 8605481. The next prime is 8605501. The reversal of 8605491 is 1945068.

8605491 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 an interprime number because it is at equal distance from previous prime (8605481) and next prime (8605501).

It is a cyclic number.

It is not a de Polignac number, because 8605491 - 2¹⁰ = 8604467 is a prime.

8605491 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (8605411) 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, 1434246 + ... + 1434251.

It is an arithmetic number, because the mean of its divisors is an integer number (2868498).

Almost surely, 2^8605491 is an apocalyptic number.

8605491 is a deficient number, since it is larger than the sum of its proper divisors (2868501).

8605491 is a wasteful number, since it uses less digits than its factorization.

8605491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2868500.

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 8605491 is about 2933.5117180608. The cubic root of 8605491 is about 204.9235566658.

The spelling of 8605491 in words is "eight million, six hundred five thousand, four hundred ninety-one".