8118638 has 8 divisors (see below), whose sum is σ = 13285080. Its totient is φ = 3690280.

The previous prime is 8118629. The next prime is 8118641. The reversal of 8118638 is 8368118.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 8118598 and 8118607.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 184493 + ... + 184536.

It is an arithmetic number, because the mean of its divisors is an integer number (1660635).

Almost surely, 2^8118638 is an apocalyptic number.

8118638 is a deficient number, since it is larger than the sum of its proper divisors (5166442).

8118638 is a wasteful number, since it uses less digits than its factorization.

8118638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 369042.

The product of its digits is 9216, while the sum is 35.

The square root of 8118638 is about 2849.3223755834. The cubic root of 8118638 is about 200.9838027261.

It can be divided in two parts, 811 and 8638, that added together give a palindrome (9449).

The spelling of 8118638 in words is "eight million, one hundred eighteen thousand, six hundred thirty-eight".