461766489 has 4 divisors (see below), whose sum is σ = 615688656. Its totient is φ = 307844324.

The previous prime is 461766467. The next prime is 461766491. The reversal of 461766489 is 984667164.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 461766489 - 2⁸ = 461766233 is a prime.

It is not an unprimeable number, because it can be changed into a prime (461766439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76961079 + ... + 76961084.

It is an arithmetic number, because the mean of its divisors is an integer number (153922164).

Almost surely, 2^461766489 is an apocalyptic number.

It is an amenable number.

461766489 is a deficient number, since it is larger than the sum of its proper divisors (153922167).

461766489 is a wasteful number, since it uses less digits than its factorization.

461766489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153922166.

The product of its digits is 1741824, while the sum is 51.

The square root of 461766489 is about 21488.7526161944. The cubic root of 461766489 is about 772.9311391883.

The spelling of 461766489 in words is "four hundred sixty-one million, seven hundred sixty-six thousand, four hundred eighty-nine".