8656243 has 4 divisors (see below), whose sum is σ = 8701288. Its totient is φ = 8611200.

The previous prime is 8656231. The next prime is 8656253. The reversal of 8656243 is 3426568.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8656243 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8656199 and 8656208.

It is not an unprimeable number, because it can be changed into a prime (8656253) 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, 22233 + ... + 22618.

It is an arithmetic number, because the mean of its divisors is an integer number (2175322).

Almost surely, 2^8656243 is an apocalyptic number.

8656243 is a deficient number, since it is larger than the sum of its proper divisors (45045).

8656243 is a wasteful number, since it uses less digits than its factorization.

8656243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45044.

The product of its digits is 34560, while the sum is 34.

The square root of 8656243 is about 2942.1493843787. The cubic root of 8656243 is about 205.3256217119.

The spelling of 8656243 in words is "eight million, six hundred fifty-six thousand, two hundred forty-three".