208215 has 24 divisors (see below), whose sum is σ = 413088. Its totient is φ = 95040.

The previous prime is 208213. The next prime is 208217. The reversal of 208215 is 512802.

It is an interprime number because it is at equal distance from previous prime (208213) and next prime (208217).

It is not a de Polignac number, because 208215 - 2¹ = 208213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (208213) 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 23 ways as a sum of consecutive naturals, for example, 16 + ... + 645.

It is an arithmetic number, because the mean of its divisors is an integer number (17212).

2²⁰⁸²¹⁵ is an apocalyptic number.

208215 is a deficient number, since it is larger than the sum of its proper divisors (204873).

208215 is a wasteful number, since it uses less digits than its factorization.

208215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 679 (or 676 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 208215 is about 456.3058185033. The cubic root of 208215 is about 59.2703289747.

The spelling of 208215 in words is "two hundred eight thousand, two hundred fifteen".