8625491 has 4 divisors (see below), whose sum is σ = 9857712. Its totient is φ = 7393272.

The previous prime is 8625479. The next prime is 8625493. The reversal of 8625491 is 1945268.

8625491 is digitally balanced in base 2 and base 8, because in such bases 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 8625491 - 2²² = 4431187 is a prime.

It is a Duffinian number.

8625491 is strictly pandigital in base 8.

It is not an unprimeable number, because it can be changed into a prime (8625493) 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, 616100 + ... + 616113.

It is an arithmetic number, because the mean of its divisors is an integer number (2464428).

Almost surely, 2^8625491 is an apocalyptic number.

8625491 is a deficient number, since it is larger than the sum of its proper divisors (1232221).

8625491 is a wasteful number, since it uses less digits than its factorization.

8625491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1232220.

The product of its digits is 17280, while the sum is 35.

The square root of 8625491 is about 2936.9186233193. The cubic root of 8625491 is about 205.0821879453.

The spelling of 8625491 in words is "eight million, six hundred twenty-five thousand, four hundred ninety-one".