200461721 has 8 divisors (see below), whose sum is σ = 213629184. Its totient is φ = 187665280.

The previous prime is 200461699. The next prime is 200461777. The reversal of 200461721 is 127164002.

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

It is a de Polignac number, because none of the positive numbers 2^k-200461721 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (200461621) 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 7 ways as a sum of consecutive naturals, for example, 91640 + ... + 93801.

It is an arithmetic number, because the mean of its divisors is an integer number (26703648).

Almost surely, 2^200461721 is an apocalyptic number.

It is an amenable number.

200461721 is a deficient number, since it is larger than the sum of its proper divisors (13167463).

200461721 is a wasteful number, since it uses less digits than its factorization.

200461721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185511.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 200461721 is about 14158.4505155049. The cubic root of 200461721 is about 585.2532285727.

The spelling of 200461721 in words is "two hundred million, four hundred sixty-one thousand, seven hundred twenty-one".