3918684 has 48 divisors (see below), whose sum is σ = 11402496. Its totient is φ = 1017600.

The previous prime is 3918667. The next prime is 3918689. The reversal of 3918684 is 4868193.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3918689) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1197 + ... + 3044.

It is an arithmetic number, because the mean of its divisors is an integer number (237552).

Almost surely, 2^3918684 is an apocalyptic number.

It is an amenable number.

3918684 is an abundant number, since it is smaller than the sum of its proper divisors (7483812).

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

3918684 is a wasteful number, since it uses less digits than its factorization.

3918684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4266 (or 4264 counting only the distinct ones).

The product of its digits is 41472, while the sum is 39.

The square root of 3918684 is about 1979.5666192377. The cubic root of 3918684 is about 157.6570567371.

The spelling of 3918684 in words is "three million, nine hundred eighteen thousand, six hundred eighty-four".