8463787321 has 4 divisors (see below), whose sum is σ = 9233222544. Its totient is φ = 7694352100.

The previous prime is 8463787301. The next prime is 8463787337. The reversal of 8463787321 is 1237873648.

It is a happy number.

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 a cyclic number.

It is not a de Polignac number, because 8463787321 - 2⁷ = 8463787193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8463787301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 384717595 + ... + 384717616.

It is an arithmetic number, because the mean of its divisors is an integer number (2308305636).

Almost surely, 2^8463787321 is an apocalyptic number.

It is an amenable number.

8463787321 is a deficient number, since it is larger than the sum of its proper divisors (769435223).

8463787321 is a wasteful number, since it uses less digits than its factorization.

8463787321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 769435222.

The product of its digits is 1354752, while the sum is 49.

The square root of 8463787321 is about 91998.8441286085. The cubic root of 8463787321 is about 2037.9252359267.

The spelling of 8463787321 in words is "eight billion, four hundred sixty-three million, seven hundred eighty-seven thousand, three hundred twenty-one".