656089 has 8 divisors (see below), whose sum is σ = 789440. Its totient is φ = 532656.

The previous prime is 656077. The next prime is 656113. The reversal of 656089 is 980656.

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 656089 - 2⁷ = 655961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (656039) 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, 2334 + ... + 2599.

It is an arithmetic number, because the mean of its divisors is an integer number (98680).

2⁶⁵⁶⁰⁸⁹ is an apocalyptic number.

It is an amenable number.

656089 is a deficient number, since it is larger than the sum of its proper divisors (133351).

656089 is a wasteful number, since it uses less digits than its factorization.

656089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4959.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 656089 is about 809.9932098481. The cubic root of 656089 is about 86.8935589976.

The spelling of 656089 in words is "six hundred fifty-six thousand, eighty-nine".