5643659 has 8 divisors (see below), whose sum is σ = 6556128. Its totient is φ = 4757760.

The previous prime is 5643653. The next prime is 5643667. The reversal of 5643659 is 9563465.

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

It is not a de Polignac number, because 5643659 - 2¹⁶ = 5578123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5643653) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6182 + ... + 7035.

It is an arithmetic number, because the mean of its divisors is an integer number (819516).

Almost surely, 2^5643659 is an apocalyptic number.

5643659 is a deficient number, since it is larger than the sum of its proper divisors (912469).

5643659 is a wasteful number, since it uses less digits than its factorization.

5643659 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13285.

The product of its digits is 97200, while the sum is 38.

The square root of 5643659 is about 2375.6386509737. The cubic root of 5643659 is about 178.0410943288.

The spelling of 5643659 in words is "five million, six hundred forty-three thousand, six hundred fifty-nine".