463681864 has 8 divisors (see below), whose sum is σ = 869403510. Its totient is φ = 231840928.

The previous prime is 463681861. The next prime is 463681877. The reversal of 463681864 is 468186364.

It can be written as a sum of positive squares in only one way, i.e., 239940100 + 223741764 = 15490^2 + 14958^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (463681861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28980109 + ... + 28980124.

Almost surely, 2^463681864 is an apocalyptic number.

It is an amenable number.

463681864 is a deficient number, since it is larger than the sum of its proper divisors (405721646).

463681864 is a wasteful number, since it uses less digits than its factorization.

463681864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57960239 (or 57960235 counting only the distinct ones).

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

The square root of 463681864 is about 21533.2734158093. The cubic root of 463681864 is about 773.9983530157.

The spelling of 463681864 in words is "four hundred sixty-three million, six hundred eighty-one thousand, eight hundred sixty-four".