208052811 has 12 divisors (see below), whose sum is σ = 310215360. Its totient is φ = 134227440.

The previous prime is 208052777. The next prime is 208052839. The reversal of 208052811 is 118250802.

It is not a de Polignac number, because 208052811 - 2²² = 203858507 is a prime.

It is not an unprimeable number, because it can be changed into a prime (208052881) 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 11 ways as a sum of consecutive naturals, for example, 372576 + ... + 373133.

It is an arithmetic number, because the mean of its divisors is an integer number (25851280).

Almost surely, 2^208052811 is an apocalyptic number.

208052811 is a deficient number, since it is larger than the sum of its proper divisors (102162549).

208052811 is a wasteful number, since it uses less digits than its factorization.

208052811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 745746 (or 745743 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 27.

The square root of 208052811 is about 14424.0358776592. The cubic root of 208052811 is about 592.5493544317.

The spelling of 208052811 in words is "two hundred eight million, fifty-two thousand, eight hundred eleven".