3996894 has 32 divisors (see below), whose sum is σ = 9103104. Its totient is φ = 1158080.

The previous prime is 3996869. The next prime is 3996911. The reversal of 3996894 is 4986993.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 202 + ... + 2834.

It is an arithmetic number, because the mean of its divisors is an integer number (284472).

Almost surely, 2^3996894 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3996894, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4551552).

3996894 is an abundant number, since it is smaller than the sum of its proper divisors (5106210).

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

3996894 is a wasteful number, since it uses less digits than its factorization.

3996894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2672.

The product of its digits is 419904, while the sum is 48.

The square root of 3996894 is about 1999.2233492034. The cubic root of 3996894 is about 158.6990073269.

Subtracting 3996894 from its reverse (4986993), we obtain a palindrome (990099).

The spelling of 3996894 in words is "three million, nine hundred ninety-six thousand, eight hundred ninety-four".