208120802 has 10 divisors (see below), whose sum is σ = 315303015. Its totient is φ = 103030100.

The previous prime is 208120793. The next prime is 208120807. The reversal of 208120802 is 208021802.

It can be written as a sum of positive squares in 3 ways, for example, as 178516321 + 29604481 = 13361^2 + 5441^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=10201.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (208120807) by changing a digit.

It is a polite number, since it can be written in 4 ways as a sum of consecutive naturals, for example, 2060552 + ... + 2060652.

Almost surely, 2^208120802 is an apocalyptic number.

208120802 is a deficient number, since it is larger than the sum of its proper divisors (107182213).

208120802 is an frugal number, since it uses more digits than its factorization.

208120802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 406 (or 103 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 23.

The square root of 208120802 is about 14426.3925497679. The cubic root of 208120802 is about 592.6138951527.

Multiplying 208120802 by its product of nonzero digits (512), we get a square (106557850624 = 326432²).

The spelling of 208120802 in words is "two hundred eight million, one hundred twenty thousand, eight hundred two".