200856691 has 4 divisors (see below), whose sum is σ = 229550512. Its totient is φ = 172162872.

The previous prime is 200856671. The next prime is 200856701. The reversal of 200856691 is 196658002.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 200856691 - 2⁷ = 200856563 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 200856691.

It is not an unprimeable number, because it can be changed into a prime (200856611) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 14346900 + ... + 14346913.

It is an arithmetic number, because the mean of its divisors is an integer number (57387628).

Almost surely, 2^200856691 is an apocalyptic number.

200856691 is a deficient number, since it is larger than the sum of its proper divisors (28693821).

200856691 is an equidigital number, since it uses as much as digits as its factorization.

200856691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28693820.

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 200856691 is about 14172.3918588219. The cubic root of 200856691 is about 585.6373514797.

The spelling of 200856691 in words is "two hundred million, eight hundred fifty-six thousand, six hundred ninety-one".