463867561 has 2 divisors, whose sum is σ = 463867562. Its totient is φ = 463867560.

The previous prime is 463867541. The next prime is 463867583. The reversal of 463867561 is 165768364.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 440160400 + 23707161 = 20980^2 + 4869^2 .

It is a cyclic number.

It is not a de Polignac number, because 463867561 - 2⁵ = 463867529 is a prime.

It is a super-2 number, since 2×463867561² = 430346228296177442, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (463867511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 231933780 + 231933781.

It is an arithmetic number, because the mean of its divisors is an integer number (231933781).

Almost surely, 2^463867561 is an apocalyptic number.

It is an amenable number.

463867561 is a deficient number, since it is larger than the sum of its proper divisors (1).

463867561 is an equidigital number, since it uses as much as digits as its factorization.

463867561 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 725760, while the sum is 46.

The square root of 463867561 is about 21537.5848460314. The cubic root of 463867561 is about 774.1016637844.

The spelling of 463867561 in words is "four hundred sixty-three million, eight hundred sixty-seven thousand, five hundred sixty-one".