206887402 has 16 divisors (see below), whose sum is σ = 315111240. Its totient is φ = 101855232.

The previous prime is 206887391. The next prime is 206887403. The reversal of 206887402 is 204788602.

It can be written as a sum of positive squares in 4 ways, for example, as 203319081 + 3568321 = 14259^2 + 1889^2 .

It is not an unprimeable number, because it can be changed into a prime (206887403) 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, 167724 + ... + 168952.

Almost surely, 2^206887402 is an apocalyptic number.

206887402 is a deficient number, since it is larger than the sum of its proper divisors (108223838).

206887402 is a wasteful number, since it uses less digits than its factorization.

206887402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2457.

The product of its (nonzero) digits is 43008, while the sum is 37.

The square root of 206887402 is about 14383.5809866667. The cubic root of 206887402 is about 591.4408926407.

The spelling of 206887402 in words is "two hundred six million, eight hundred eighty-seven thousand, four hundred two".