659841 has 16 divisors (see below), whose sum is σ = 1083264. Its totient is φ = 347904.

The previous prime is 659831. The next prime is 659843. The reversal of 659841 is 148956.

659841 = 36² + 37² + ... + 126².

It is not a de Polignac number, because 659841 - 2⁷ = 659713 is a prime.

It is not an unprimeable number, because it can be changed into a prime (659843) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 936 + ... + 1481.

It is an arithmetic number, because the mean of its divisors is an integer number (67704).

2⁶⁵⁹⁸⁴¹ is an apocalyptic number.

It is an amenable number.

659841 is a deficient number, since it is larger than the sum of its proper divisors (423423).

659841 is a wasteful number, since it uses less digits than its factorization.

659841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2440.

The product of its digits is 8640, while the sum is 33.

The square root of 659841 is about 812.3059768339. The cubic root of 659841 is about 87.0588846965.

The spelling of 659841 in words is "six hundred fifty-nine thousand, eight hundred forty-one".