200491689 has 8 divisors (see below), whose sum is σ = 271704832. Its totient is φ = 131469840.

The previous prime is 200491673. The next prime is 200491751. The reversal of 200491689 is 986194002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 200491689 - 2⁴ = 200491673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (200491639) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 547609 + ... + 547974.

It is an arithmetic number, because the mean of its divisors is an integer number (33963104).

Almost surely, 2^200491689 is an apocalyptic number.

It is an amenable number.

200491689 is a deficient number, since it is larger than the sum of its proper divisors (71213143).

200491689 is a wasteful number, since it uses less digits than its factorization.

200491689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1095647.

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

The square root of 200491689 is about 14159.5087838526. The cubic root of 200491689 is about 585.2823912390.

The spelling of 200491689 in words is "two hundred million, four hundred ninety-one thousand, six hundred eighty-nine".