8680643 has 4 divisors (see below), whose sum is σ = 8892408. Its totient is φ = 8468880.

The previous prime is 8680631. The next prime is 8680669. The reversal of 8680643 is 3460868.

8680643 is nontrivially palindromic in base 11.

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 8680643 - 2¹⁴ = 8664259 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8680613) 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, 105821 + ... + 105902.

It is an arithmetic number, because the mean of its divisors is an integer number (2223102).

Almost surely, 2^8680643 is an apocalyptic number.

8680643 is a deficient number, since it is larger than the sum of its proper divisors (211765).

8680643 is a wasteful number, since it uses less digits than its factorization.

8680643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211764.

The product of its (nonzero) digits is 27648, while the sum is 35.

The square root of 8680643 is about 2946.2930947209. The cubic root of 8680643 is about 205.5183629595.

The spelling of 8680643 in words is "eight million, six hundred eighty thousand, six hundred forty-three".