200971656 has 48 divisors (see below), whose sum is σ = 544968060. Its totient is φ = 66908160.

The previous prime is 200971649. The next prime is 200971657. The reversal of 200971656 is 656179002.

It can be written as a sum of positive squares in 2 ways, for example, as 197964900 + 3006756 = 14070^2 + 1734^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 200971656.

It is not an unprimeable number, because it can be changed into a prime (200971657) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 94056 + ... + 96168.

Almost surely, 2^200971656 is an apocalyptic number.

It is an amenable number.

200971656 is an abundant number, since it is smaller than the sum of its proper divisors (343996404).

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

200971656 is a wasteful number, since it uses less digits than its factorization.

200971656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3446 (or 3439 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 200971656 is about 14176.4472277084. The cubic root of 200971656 is about 585.7490645562.

The spelling of 200971656 in words is "two hundred million, nine hundred seventy-one thousand, six hundred fifty-six".