208985377 has 4 divisors (see below), whose sum is σ = 209116080. Its totient is φ = 208854676.

The previous prime is 208985333. The next prime is 208985393. The reversal of 208985377 is 773589802.

208985377 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 208985377 - 2²³ = 200596769 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 208985377.

It is not an unprimeable number, because it can be changed into a prime (208985317) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62923 + ... + 66160.

It is an arithmetic number, because the mean of its divisors is an integer number (52279020).

Almost surely, 2^208985377 is an apocalyptic number.

It is an amenable number.

208985377 is a deficient number, since it is larger than the sum of its proper divisors (130703).

208985377 is a wasteful number, since it uses less digits than its factorization.

208985377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130702.

The product of its (nonzero) digits is 846720, while the sum is 49.

The square root of 208985377 is about 14456.3265389241. The cubic root of 208985377 is about 593.4333732409.

The spelling of 208985377 in words is "two hundred eight million, nine hundred eighty-five thousand, three hundred seventy-seven".