659401 has 8 divisors (see below), whose sum is σ = 691200. Its totient is φ = 628320.

The previous prime is 659371. The next prime is 659419. The reversal of 659401 is 104956.

659401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 659401 - 2¹⁷ = 528329 is a prime.

It is a Duffinian number.

659401 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (659101) 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, 2640 + ... + 2878.

It is an arithmetic number, because the mean of its divisors is an integer number (86400).

2⁶⁵⁹⁴⁰¹ is an apocalyptic number.

It is an amenable number.

659401 is a deficient number, since it is larger than the sum of its proper divisors (31799).

659401 is a wasteful number, since it uses less digits than its factorization.

659401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 659401 is about 812.0350977636. The cubic root of 659401 is about 87.0395293129.

It can be divided in two parts, 65 and 9401, that multiplied together give a triangular number (611065 = T₁₁₀₅).

The spelling of 659401 in words is "six hundred fifty-nine thousand, four hundred one".