208870 has 8 divisors (see below), whose sum is σ = 375984. Its totient is φ = 83544.

The previous prime is 208843. The next prime is 208877. The reversal of 208870 is 78802.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (208877) by changing a digit.

208870 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10434 + ... + 10453.

It is an arithmetic number, because the mean of its divisors is an integer number (46998).

2²⁰⁸⁸⁷⁰ is an apocalyptic number.

208870 is a deficient number, since it is larger than the sum of its proper divisors (167114).

208870 is a wasteful number, since it uses less digits than its factorization.

208870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20894.

The product of its (nonzero) digits is 896, while the sum is 25.

The square root of 208870 is about 457.0229753524. The cubic root of 208870 is about 59.3324145238.

The spelling of 208870 in words is "two hundred eight thousand, eight hundred seventy".