463684861 has 2 divisors, whose sum is σ = 463684862. Its totient is φ = 463684860.

The previous prime is 463684817. The next prime is 463684889. The reversal of 463684861 is 168486364.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 317516761 + 146168100 = 17819^2 + 12090^2 .

It is a cyclic number.

It is not a de Polignac number, because 463684861 - 2⁹ = 463684349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (463684261) 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 as a sum of consecutive naturals, namely, 231842430 + 231842431.

It is an arithmetic number, because the mean of its divisors is an integer number (231842431).

Almost surely, 2^463684861 is an apocalyptic number.

It is an amenable number.

463684861 is a deficient number, since it is larger than the sum of its proper divisors (1).

463684861 is an equidigital number, since it uses as much as digits as its factorization.

463684861 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 663552, while the sum is 46.

The square root of 463684861 is about 21533.3430056738. The cubic root of 463684861 is about 774.0000205873. Note that the first 4 decimals are identical.

The spelling of 463684861 in words is "four hundred sixty-three million, six hundred eighty-four thousand, eight hundred sixty-one".