463809081 has 4 divisors (see below), whose sum is σ = 618412112. Its totient is φ = 309206052.

The previous prime is 463809029. The next prime is 463809083. The reversal of 463809081 is 180908364.

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 not a de Polignac number, because 463809081 - 2¹⁰ = 463808057 is a prime.

It is a super-2 number, since 2×463809081² = 430237727236129122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (463809083) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77301511 + ... + 77301516.

It is an arithmetic number, because the mean of its divisors is an integer number (154603028).

Almost surely, 2^463809081 is an apocalyptic number.

It is an amenable number.

463809081 is a deficient number, since it is larger than the sum of its proper divisors (154603031).

463809081 is a wasteful number, since it uses less digits than its factorization.

463809081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154603030.

The product of its (nonzero) digits is 41472, while the sum is 39.

The square root of 463809081 is about 21536.2271765507. The cubic root of 463809081 is about 774.0691319645.

The spelling of 463809081 in words is "four hundred sixty-three million, eight hundred nine thousand, eighty-one".