8680645 has 8 divisors (see below), whose sum is σ = 10433304. Its totient is φ = 6933504.

The previous prime is 8680631. The next prime is 8680669. The reversal of 8680645 is 5460868.

It can be written as a sum of positive squares in 4 ways, for example, as 2683044 + 5997601 = 1638^2 + 2449^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8680645 - 2⁵ = 8680613 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3997 + ... + 5773.

It is an arithmetic number, because the mean of its divisors is an integer number (1304163).

Almost surely, 2^8680645 is an apocalyptic number.

It is an amenable number.

8680645 is a deficient number, since it is larger than the sum of its proper divisors (1752659).

8680645 is a wasteful number, since it uses less digits than its factorization.

8680645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2759.

The product of its (nonzero) digits is 46080, while the sum is 37.

The square root of 8680645 is about 2946.2934341304. The cubic root of 8680645 is about 205.5183787431.

The spelling of 8680645 in words is "eight million, six hundred eighty thousand, six hundred forty-five".