208071873 has 6 divisors (see below), whose sum is σ = 300548274. Its totient is φ = 138714576.

The previous prime is 208071863. The next prime is 208071881. The reversal of 208071873 is 378170802.

208071873 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 132434064 + 75637809 = 11508^2 + 8697^2 .

It is a de Polignac number, because none of the positive numbers 2^k-208071873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (208071833) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11559540 + ... + 11559557.

It is an arithmetic number, because the mean of its divisors is an integer number (50091379).

Almost surely, 2^208071873 is an apocalyptic number.

It is an amenable number.

208071873 is a deficient number, since it is larger than the sum of its proper divisors (92476401).

208071873 is a wasteful number, since it uses less digits than its factorization.

208071873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23119103 (or 23119100 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 36.

The square root of 208071873 is about 14424.6966345917. The cubic root of 208071873 is about 592.5674505276.

The spelling of 208071873 in words is "two hundred eight million, seventy-one thousand, eight hundred seventy-three".