200921706 has 12 divisors (see below), whose sum is σ = 435330402. Its totient is φ = 66973896.

The previous prime is 200921641. The next prime is 200921719. The reversal of 200921706 is 607129002.

It can be written as a sum of positive squares in only one way, i.e., 100821681 + 100100025 = 10041^2 + 10005^2 .

It is a super-3 number, since 3×200921706³ (a number of 26 digits) contains 333 as substring.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 200921706.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5581141 + ... + 5581176.

Almost surely, 2^200921706 is an apocalyptic number.

200921706 is an abundant number, since it is smaller than the sum of its proper divisors (234408696).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

200921706 is a wasteful number, since it uses less digits than its factorization.

200921706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11162325 (or 11162322 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 200921706 is about 14174.6853933341. The cubic root of 200921706 is about 585.7005326875.

The spelling of 200921706 in words is "two hundred million, nine hundred twenty-one thousand, seven hundred six".