8604491 has 4 divisors (see below), whose sum is σ = 9833712. Its totient is φ = 7375272.

The previous prime is 8604487. The next prime is 8604509. The reversal of 8604491 is 1944068.

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 8604491 - 2² = 8604487 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8604481) 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 3 ways as a sum of consecutive naturals, for example, 614600 + ... + 614613.

It is an arithmetic number, because the mean of its divisors is an integer number (2458428).

Almost surely, 2^8604491 is an apocalyptic number.

8604491 is a deficient number, since it is larger than the sum of its proper divisors (1229221).

8604491 is a wasteful number, since it uses less digits than its factorization.

8604491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1229220.

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 8604491 is about 2933.3412689287. The cubic root of 8604491 is about 204.9156186529.

The spelling of 8604491 in words is "eight million, six hundred four thousand, four hundred ninety-one".