200447091 has 12 divisors (see below), whose sum is σ = 311806768. Its totient is φ = 123351984.

The previous prime is 200447089. The next prime is 200447173. The reversal of 200447091 is 190744002.

It is a happy number.

It is not a de Polignac number, because 200447091 - 2¹ = 200447089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (200447041) 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, 856495 + ... + 856728.

Almost surely, 2^200447091 is an apocalyptic number.

200447091 is a deficient number, since it is larger than the sum of its proper divisors (111359677).

200447091 is a wasteful number, since it uses less digits than its factorization.

200447091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1713242 (or 1713239 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 200447091 is about 14157.9338534971. The cubic root of 200447091 is about 585.2389906707.

The spelling of 200447091 in words is "two hundred million, four hundred forty-seven thousand, ninety-one".