208601 has 4 divisors (see below), whose sum is σ = 219600. Its totient is φ = 197604.

The previous prime is 208591. The next prime is 208609. The reversal of 208601 is 106802.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 106802 = 2 ⋅53401.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-208601 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 208601.

It is not an unprimeable number, because it can be changed into a prime (208609) 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, 5471 + ... + 5508.

It is an arithmetic number, because the mean of its divisors is an integer number (54900).

2²⁰⁸⁶⁰¹ is an apocalyptic number.

It is an amenable number.

208601 is a deficient number, since it is larger than the sum of its proper divisors (10999).

208601 is a wasteful number, since it uses less digits than its factorization.

208601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10998.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 208601 is about 456.7285846102. The cubic root of 208601 is about 59.3069325236.

The spelling of 208601 in words is "two hundred eight thousand, six hundred one".