461189689 has 4 divisors (see below), whose sum is σ = 472438260. Its totient is φ = 449941120.

The previous prime is 461189683. The next prime is 461189711. The reversal of 461189689 is 986981164.

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

It can be written as a sum of positive squares in 2 ways, for example, as 72114064 + 389075625 = 8492^2 + 19725^2 .

It is a cyclic number.

It is not a de Polignac number, because 461189689 - 2³ = 461189681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (461189681) 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, 5624224 + ... + 5624305.

It is an arithmetic number, because the mean of its divisors is an integer number (118109565).

Almost surely, 2^461189689 is an apocalyptic number.

It is an amenable number.

461189689 is a deficient number, since it is larger than the sum of its proper divisors (11248571).

461189689 is a wasteful number, since it uses less digits than its factorization.

461189689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11248570.

The product of its digits is 746496, while the sum is 52.

The square root of 461189689 is about 21475.3274480274. The cubic root of 461189689 is about 772.6091781608.

The spelling of 461189689 in words is "four hundred sixty-one million, one hundred eighty-nine thousand, six hundred eighty-nine".