463681913 has 2 divisors, whose sum is σ = 463681914. Its totient is φ = 463681912.

The previous prime is 463681879. The next prime is 463681927. The reversal of 463681913 is 319186364.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 462594064 + 1087849 = 21508^2 + 1043^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-463681913 is a prime.

It is not a weakly prime, because it can be changed into another prime (463681213) 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, 231840956 + 231840957.

It is an arithmetic number, because the mean of its divisors is an integer number (231840957).

Almost surely, 2^463681913 is an apocalyptic number.

It is an amenable number.

463681913 is a deficient number, since it is larger than the sum of its proper divisors (1).

463681913 is an equidigital number, since it uses as much as digits as its factorization.

463681913 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 93312, while the sum is 41.

The square root of 463681913 is about 21533.2745535833. The cubic root of 463681913 is about 773.9983802800.

The spelling of 463681913 in words is "four hundred sixty-three million, six hundred eighty-one thousand, nine hundred thirteen".