8768399447 has 4 divisors (see below), whose sum is σ = 8933841000. Its totient is φ = 8602957896.

The previous prime is 8768399443. The next prime is 8768399467. The reversal of 8768399447 is 7449938678.

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

It is a cyclic number.

It is not a de Polignac number, because 8768399447 - 2² = 8768399443 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8768399443) 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, 82720697 + ... + 82720802.

It is an arithmetic number, because the mean of its divisors is an integer number (2233460250).

Almost surely, 2^8768399447 is an apocalyptic number.

8768399447 is a deficient number, since it is larger than the sum of its proper divisors (165441553).

8768399447 is a wasteful number, since it uses less digits than its factorization.

8768399447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165441552.

The product of its digits is 73156608, while the sum is 65.

The square root of 8768399447 is about 93639.7322027354. The cubic root of 8768399447 is about 2062.0860076428.

The spelling of 8768399447 in words is "eight billion, seven hundred sixty-eight million, three hundred ninety-nine thousand, four hundred forty-seven".