208478841 has 8 divisors (see below), whose sum is σ = 278038944. Its totient is φ = 138952320.

The previous prime is 208478833. The next prime is 208478861. The reversal of 208478841 is 148874802.

208478841 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 208478841 - 2³ = 208478833 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 208478793 and 208478802.

It is not an unprimeable number, because it can be changed into a prime (208478821) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17545 + ... + 26921.

It is an arithmetic number, because the mean of its divisors is an integer number (34754868).

Almost surely, 2^208478841 is an apocalyptic number.

It is an amenable number.

208478841 is a deficient number, since it is larger than the sum of its proper divisors (69560103).

208478841 is an equidigital number, since it uses as much as digits as its factorization.

208478841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16791.

The product of its (nonzero) digits is 114688, while the sum is 42.

The square root of 208478841 is about 14438.7963833555. The cubic root of 208478841 is about 592.9535333614.

The spelling of 208478841 in words is "two hundred eight million, four hundred seventy-eight thousand, eight hundred forty-one".