8749424317 has 4 divisors (see below), whose sum is σ = 8752511196. Its totient is φ = 8746337440.

The previous prime is 8749424303. The next prime is 8749424389. The reversal of 8749424317 is 7134249478.

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 1718434116 + 7030990201 = 41454^2 + 83851^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8749424317 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 (8749454317) 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, 1539184 + ... + 1544857.

It is an arithmetic number, because the mean of its divisors is an integer number (2188127799).

Almost surely, 2^8749424317 is an apocalyptic number.

It is an amenable number.

8749424317 is a deficient number, since it is larger than the sum of its proper divisors (3086879).

8749424317 is a wasteful number, since it uses less digits than its factorization.

8749424317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3086878.

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

The square root of 8749424317 is about 93538.3574636630. The cubic root of 8749424317 is about 2060.5974574106.

The spelling of 8749424317 in words is "eight billion, seven hundred forty-nine million, four hundred twenty-four thousand, three hundred seventeen".