4656689 has 4 divisors (see below), whose sum is σ = 4687680. Its totient is φ = 4625700.

The previous prime is 4656661. The next prime is 4656703. The reversal of 4656689 is 9866564.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4656689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4656629) 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, 15269 + ... + 15570.

It is an arithmetic number, because the mean of its divisors is an integer number (1171920).

Almost surely, 2^4656689 is an apocalyptic number.

It is an amenable number.

4656689 is a deficient number, since it is larger than the sum of its proper divisors (30991).

4656689 is a wasteful number, since it uses less digits than its factorization.

4656689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30990.

The product of its digits is 311040, while the sum is 44.

The square root of 4656689 is about 2157.9362826553. The cubic root of 4656689 is about 166.9907485283.

The spelling of 4656689 in words is "four million, six hundred fifty-six thousand, six hundred eighty-nine".