659408 has 10 divisors (see below), whose sum is σ = 1277634. Its totient is φ = 329696.

The previous prime is 659371. The next prime is 659419. The reversal of 659408 is 804956.

It can be written as a sum of positive squares in only one way, i.e., 659344 + 64 = 812^2 + 8^2 .

It is a super-3 number, since 3×659408³ = 860169204333735936, which contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

659408 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20591 + ... + 20622.

2⁶⁵⁹⁴⁰⁸ is an apocalyptic number.

It is an amenable number.

659408 is a deficient number, since it is larger than the sum of its proper divisors (618226).

659408 is a wasteful number, since it uses less digits than its factorization.

659408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41221 (or 41215 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 659408 is about 812.0394079107. The cubic root of 659408 is about 87.0398373069.

The spelling of 659408 in words is "six hundred fifty-nine thousand, four hundred eight".