463249909 has 2 divisors, whose sum is σ = 463249910. Its totient is φ = 463249908.

The previous prime is 463249889. The next prime is 463249931. The reversal of 463249909 is 909942364.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 459973809 + 3276100 = 21447^2 + 1810^2 .

It is a cyclic number.

It is not a de Polignac number, because 463249909 - 2¹¹ = 463247861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (463249979) 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, 231624954 + 231624955.

It is an arithmetic number, because the mean of its divisors is an integer number (231624955).

Almost surely, 2^463249909 is an apocalyptic number.

It is an amenable number.

463249909 is a deficient number, since it is larger than the sum of its proper divisors (1).

463249909 is an equidigital number, since it uses as much as digits as its factorization.

463249909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 419904, while the sum is 46.

The square root of 463249909 is about 21523.2411360371. The cubic root of 463249909 is about 773.7579321891.

The spelling of 463249909 in words is "four hundred sixty-three million, two hundred forty-nine thousand, nine hundred nine".