8387756338 has 16 divisors (see below), whose sum is σ = 13552514136. Its totient is φ = 3870397440.

The previous prime is 8387756303. The next prime is 8387756339. The reversal of 8387756338 is 8336577838.

It can be written as a sum of positive squares in 4 ways, for example, as 5817570529 + 2570185809 = 76273^2 + 50697^2 .

It is not an unprimeable number, because it can be changed into a prime (8387756339) 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 in 7 ways as a sum of consecutive naturals, for example, 88978 + ... + 157138.

Almost surely, 2^8387756338 is an apocalyptic number.

8387756338 is a deficient number, since it is larger than the sum of its proper divisors (5164757798).

8387756338 is a wasteful number, since it uses less digits than its factorization.

8387756338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72909.

The product of its digits is 20321280, while the sum is 58.

The square root of 8387756338 is about 91584.6948894847. The cubic root of 8387756338 is about 2031.8045815194.

The spelling of 8387756338 in words is "eight billion, three hundred eighty-seven million, seven hundred fifty-six thousand, three hundred thirty-eight".