8881638 has 8 divisors (see below), whose sum is σ = 17763288. Its totient is φ = 2960544.

The previous prime is 8881619. The next prime is 8881651. The reversal of 8881638 is 8361888.

It is a happy number.

8881638 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

8881638 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 8881638.

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, 740131 + ... + 740142.

It is an arithmetic number, because the mean of its divisors is an integer number (2220411).

Almost surely, 2^8881638 is an apocalyptic number.

8881638 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

8881638 is a wasteful number, since it uses less digits than its factorization.

8881638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1480278.

The product of its digits is 73728, while the sum is 42.

The square root of 8881638 is about 2980.2077108819. The cubic root of 8881638 is about 207.0924929138.

The spelling of 8881638 in words is "eight million, eight hundred eighty-one thousand, six hundred thirty-eight".