659867 has 8 divisors (see below), whose sum is σ = 717024. Its totient is φ = 603648.

The previous prime is 659863. The next prime is 659873. The reversal of 659867 is 768956.

It is a happy number.

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 659867 - 2² = 659863 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 659867.

It is not an unprimeable number, because it can be changed into a prime (659863) 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, 2378 + ... + 2640.

It is an arithmetic number, because the mean of its divisors is an integer number (89628).

2⁶⁵⁹⁸⁶⁷ is an apocalyptic number.

659867 is a deficient number, since it is larger than the sum of its proper divisors (57157).

659867 is a wasteful number, since it uses less digits than its factorization.

659867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 469.

The product of its digits is 90720, while the sum is 41.

The square root of 659867 is about 812.3219804979. The cubic root of 659867 is about 87.0600281544.

The spelling of 659867 in words is "six hundred fifty-nine thousand, eight hundred sixty-seven".