659291 has 4 divisors (see below), whose sum is σ = 662400. Its totient is φ = 656184.

The previous prime is 659279. The next prime is 659299. The reversal of 659291 is 192956.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 659291 - 2¹⁴ = 642907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (659299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1211 + ... + 1668.

It is an arithmetic number, because the mean of its divisors is an integer number (165600).

2⁶⁵⁹²⁹¹ is an apocalyptic number.

659291 is a deficient number, since it is larger than the sum of its proper divisors (3109).

659291 is a wasteful number, since it uses less digits than its factorization.

659291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3108.

The product of its digits is 4860, while the sum is 32.

The square root of 659291 is about 811.9673638762. The cubic root of 659291 is about 87.0346891218.

It can be divided in two parts, 6 and 59291, that multiplied together give a triangular number (355746 = T₈₄₃).

The spelling of 659291 in words is "six hundred fifty-nine thousand, two hundred ninety-one".