208486851 has 8 divisors (see below), whose sum is σ = 278205264. Its totient is φ = 138879840.

The previous prime is 208486799. The next prime is 208486871. The reversal of 208486851 is 158684802.

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

It is not a de Polignac number, because 208486851 - 2⁹ = 208486339 is a prime.

It is not an unprimeable number, because it can be changed into a prime (208486871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23380 + ... + 31041.

It is an arithmetic number, because the mean of its divisors is an integer number (34775658).

Almost surely, 2^208486851 is an apocalyptic number.

208486851 is a deficient number, since it is larger than the sum of its proper divisors (69718413).

208486851 is a wasteful number, since it uses less digits than its factorization.

208486851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55701.

The product of its (nonzero) digits is 122880, while the sum is 42.

The square root of 208486851 is about 14439.0737583821. The cubic root of 208486851 is about 592.9611272527.

The spelling of 208486851 in words is "two hundred eight million, four hundred eighty-six thousand, eight hundred fifty-one".