208919 has 4 divisors (see below), whose sum is σ = 212520. Its totient is φ = 205320.

The previous prime is 208907. The next prime is 208927. The reversal of 208919 is 919802.

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

It is a de Polignac number, because none of the positive numbers 2^k-208919 is a prime.

It is a super-2 number, since 2×208919² = 87294297122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 208891 and 208900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (208319) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1712 + ... + 1829.

It is an arithmetic number, because the mean of its divisors is an integer number (53130).

2²⁰⁸⁹¹⁹ is an apocalyptic number.

208919 is a deficient number, since it is larger than the sum of its proper divisors (3601).

208919 is an equidigital number, since it uses as much as digits as its factorization.

208919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3600.

The product of its (nonzero) digits is 1296, while the sum is 29.

The square root of 208919 is about 457.0765800170. The cubic root of 208919 is about 59.3370538704.

The spelling of 208919 in words is "two hundred eight thousand, nine hundred nineteen".