208480789 has 4 divisors (see below), whose sum is σ = 227433600. Its totient is φ = 189527980.

The previous prime is 208480759. The next prime is 208480793. The reversal of 208480789 is 987084802.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 208480789 - 2⁵ = 208480757 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (208480759) 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 3 ways as a sum of consecutive naturals, for example, 9476389 + ... + 9476410.

It is an arithmetic number, because the mean of its divisors is an integer number (56858400).

Almost surely, 2^208480789 is an apocalyptic number.

It is an amenable number.

208480789 is a deficient number, since it is larger than the sum of its proper divisors (18952811).

208480789 is a wasteful number, since it uses less digits than its factorization.

208480789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18952810.

The product of its (nonzero) digits is 258048, while the sum is 46.

The square root of 208480789 is about 14438.8638403442. The cubic root of 208480789 is about 592.9553801833.

The spelling of 208480789 in words is "two hundred eight million, four hundred eighty thousand, seven hundred eighty-nine".