8393994 has 72 divisors (see below), whose sum is σ = 21909888. Its totient is φ = 2313360.

The previous prime is 8393993. The next prime is 8393999. The reversal of 8393994 is 4993938.

It is not an unprimeable number, because it can be changed into a prime (8393993) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 27189 + ... + 27495.

It is an arithmetic number, because the mean of its divisors is an integer number (304304).

Almost surely, 2^8393994 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8393994, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10954944).

8393994 is an abundant number, since it is smaller than the sum of its proper divisors (13515894).

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

8393994 is a wasteful number, since it uses less digits than its factorization.

8393994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360 (or 350 counting only the distinct ones).

The product of its digits is 209952, while the sum is 45.

The square root of 8393994 is about 2897.2390305254. The cubic root of 8393994 is about 203.2308115852.

The spelling of 8393994 in words is "eight million, three hundred ninety-three thousand, nine hundred ninety-four".