200694891 has 16 divisors (see below), whose sum is σ = 283418240. Its totient is φ = 125971200.

The previous prime is 200694887. The next prime is 200694917. The reversal of 200694891 is 198496002.

It is not a de Polignac number, because 200694891 - 2² = 200694887 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (200694191) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1510 + ... + 20091.

It is an arithmetic number, because the mean of its divisors is an integer number (17713640).

Almost surely, 2^200694891 is an apocalyptic number.

200694891 is a deficient number, since it is larger than the sum of its proper divisors (82723349).

200694891 is a wasteful number, since it uses less digits than its factorization.

200694891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21786.

The product of its (nonzero) digits is 31104, while the sum is 39.

The square root of 200694891 is about 14166.6824274422. The cubic root of 200694891 is about 585.4800559506.

The spelling of 200694891 in words is "two hundred million, six hundred ninety-four thousand, eight hundred ninety-one".