8463003649 has 4 divisors (see below), whose sum is σ = 8479247940. Its totient is φ = 8446759360.

The previous prime is 8463003641. The next prime is 8463003683. The reversal of 8463003649 is 9463003648.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2382123249 + 6080880400 = 48807^2 + 77980^2 .

It is a cyclic number.

It is not a de Polignac number, because 8463003649 - 2³ = 8463003641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8463003641) 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, 8121364 + ... + 8122405.

It is an arithmetic number, because the mean of its divisors is an integer number (2119811985).

Almost surely, 2^8463003649 is an apocalyptic number.

It is an amenable number.

8463003649 is a deficient number, since it is larger than the sum of its proper divisors (16244291).

8463003649 is a wasteful number, since it uses less digits than its factorization.

8463003649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16244290.

The product of its (nonzero) digits is 373248, while the sum is 43.

The square root of 8463003649 is about 91994.5848895466. The cubic root of 8463003649 is about 2037.8623360223.

Subtracting 8463003649 from its reverse (9463003648), we obtain a palindrome (999999999).

The spelling of 8463003649 in words is "eight billion, four hundred sixty-three million, three thousand, six hundred forty-nine".