3984894 has 24 divisors (see below), whose sum is σ = 8718840. Its totient is φ = 1315248.

The previous prime is 3984859. The next prime is 3984917. The reversal of 3984894 is 4984893.

It is a happy number.

It is a nialpdrome in base 9.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 892 + ... + 2960.

It is an arithmetic number, because the mean of its divisors is an integer number (363285).

Almost surely, 2^3984894 is an apocalyptic number.

3984894 is an abundant number, since it is smaller than the sum of its proper divisors (4733946).

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

3984894 is a wasteful number, since it uses less digits than its factorization.

3984894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2184 (or 2181 counting only the distinct ones).

The product of its digits is 248832, while the sum is 45.

The square root of 3984894 is about 1996.2199277635. The cubic root of 3984894 is about 158.5400257827.

Subtracting 3984894 from its reverse (4984893), we obtain a palindrome (999999).

The spelling of 3984894 in words is "three million, nine hundred eighty-four thousand, eight hundred ninety-four".