3978708 has 24 divisors (see below), whose sum is σ = 9330048. Its totient is φ = 1319616.

The previous prime is 3978707. The next prime is 3978727. The reversal of 3978708 is 8078793.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 3978708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3978707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2085 + ... + 3507.

It is an arithmetic number, because the mean of its divisors is an integer number (388752).

Almost surely, 2^3978708 is an apocalyptic number.

It is an amenable number.

3978708 is an abundant number, since it is smaller than the sum of its proper divisors (5351340).

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

3978708 is a wasteful number, since it uses less digits than its factorization.

3978708 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1663 (or 1661 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 42.

The square root of 3978708 is about 1994.6698975018. The cubic root of 3978708 is about 158.4579460988.

The spelling of 3978708 in words is "three million, nine hundred seventy-eight thousand, seven hundred eight".