208494313 has 8 divisors (see below), whose sum is σ = 215511296. Its totient is φ = 201495600.

The previous prime is 208494289. The next prime is 208494331. The reversal of 208494313 is 313494802.

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

It is a cyclic number.

It is not a de Polignac number, because 208494313 - 2⁵ = 208494281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (208494113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20995 + ... + 29287.

It is an arithmetic number, because the mean of its divisors is an integer number (26938912).

Almost surely, 2^208494313 is an apocalyptic number.

It is an amenable number.

208494313 is a deficient number, since it is larger than the sum of its proper divisors (7016983).

208494313 is an equidigital number, since it uses as much as digits as its factorization.

208494313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9135.

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 208494313 is about 14439.3321521461. The cubic root of 208494313 is about 592.9682014368.

The spelling of 208494313 in words is "two hundred eight million, four hundred ninety-four thousand, three hundred thirteen".