8381994 has 8 divisors (see below), whose sum is σ = 16764000. Its totient is φ = 2793996.

The previous prime is 8381993. The next prime is 8382007. The reversal of 8381994 is 4991838.

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

8381994 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (8381993) 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, 698494 + ... + 698505.

It is an arithmetic number, because the mean of its divisors is an integer number (2095500).

Almost surely, 2^8381994 is an apocalyptic number.

8381994 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.

8381994 is a wasteful number, since it uses less digits than its factorization.

8381994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1397004.

The product of its digits is 62208, while the sum is 42.

The square root of 8381994 is about 2895.1673526758. The cubic root of 8381994 is about 203.1339195768.

The spelling of 8381994 in words is "eight million, three hundred eighty-one thousand, nine hundred ninety-four".