8394682638 has 32 divisors (see below), whose sum is σ = 17765591040. Its totient is φ = 2637066240.

The previous prime is 8394682607. The next prime is 8394682721. The reversal of 8394682638 is 8362864938.

It is a happy number.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 170995 + ... + 214542.

It is an arithmetic number, because the mean of its divisors is an integer number (555174720).

Almost surely, 2^8394682638 is an apocalyptic number.

8394682638 is an abundant number, since it is smaller than the sum of its proper divisors (9370908402).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8394682638 is a wasteful number, since it uses less digits than its factorization.

8394682638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385752.

The product of its digits is 11943936, while the sum is 57.

The square root of 8394682638 is about 91622.5007189828. The cubic root of 8394682638 is about 2032.3636907599.

The spelling of 8394682638 in words is "eight billion, three hundred ninety-four million, six hundred eighty-two thousand, six hundred thirty-eight".