3942684 has 18 divisors (see below), whose sum is σ = 9966320. Its totient is φ = 1314216.

The previous prime is 3942677. The next prime is 3942721. The reversal of 3942684 is 4862493.

It is a happy number.

3942684 is a `hidden beast` number, since 394 + 268 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 109519 = 3942684 / (3 + 9 + 4 + 2 + 6 + 8 + 4).

It is a d-powerful number, because it can be written as 3³ + 9⁶ + 4⁹ + 2¹¹ + 6⁴ + 8⁷ + 4¹⁰ .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 54724 + ... + 54795.

Almost surely, 2^3942684 is an apocalyptic number.

It is an amenable number.

3942684 is an abundant number, since it is smaller than the sum of its proper divisors (6023636).

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

3942684 is a wasteful number, since it uses less digits than its factorization.

3942684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109529 (or 109524 counting only the distinct ones).

The product of its digits is 41472, while the sum is 36.

The square root of 3942684 is about 1985.6192988587. The cubic root of 3942684 is about 157.9782590392.

The spelling of 3942684 in words is "three million, nine hundred forty-two thousand, six hundred eighty-four".