208000853 has 2 divisors, whose sum is σ = 208000854. Its totient is φ = 208000852.

The previous prime is 208000817. The next prime is 208000867. The reversal of 208000853 is 358000802.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 127396369 + 80604484 = 11287^2 + 8978^2 .

It is a cyclic number.

It is not a de Polignac number, because 208000853 - 2¹² = 207996757 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (208000453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 104000426 + 104000427.

It is an arithmetic number, because the mean of its divisors is an integer number (104000427).

Almost surely, 2^208000853 is an apocalyptic number.

It is an amenable number.

208000853 is a deficient number, since it is larger than the sum of its proper divisors (1).

208000853 is an equidigital number, since it uses as much as digits as its factorization.

208000853 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 208000853 is about 14422.2346742798. The cubic root of 208000853 is about 592.5000236192.

The spelling of 208000853 in words is "two hundred eight million, eight hundred fifty-three", and thus it is an aban number.