659907 has 10 divisors (see below), whose sum is σ = 985908. Its totient is φ = 439884.

The previous prime is 659899. The next prime is 659917. The reversal of 659907 is 709956.

It is not a de Polignac number, because 659907 - 2³ = 659899 is a prime.

It is an Ulam number.

659907 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (659917) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 3993 + ... + 4154.

2⁶⁵⁹⁹⁰⁷ is an apocalyptic number.

659907 is a deficient number, since it is larger than the sum of its proper divisors (326001).

659907 is an equidigital number, since it uses as much as digits as its factorization.

659907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8159 (or 8150 counting only the distinct ones).

The product of its (nonzero) digits is 17010, while the sum is 36.

The square root of 659907 is about 812.3466009038. The cubic root of 659907 is about 87.0617872618.

The spelling of 659907 in words is "six hundred fifty-nine thousand, nine hundred seven".