3927988 has 12 divisors (see below), whose sum is σ = 6902532. Its totient is φ = 1955840.

The previous prime is 3927971. The next prime is 3927997. The reversal of 3927988 is 8897293.

3927988 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 3732624 + 195364 = 1932^2 + 442^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 883 + ... + 2938.

It is an arithmetic number, because the mean of its divisors is an integer number (575211).

Almost surely, 2^3927988 is an apocalyptic number.

It is an amenable number.

3927988 is a deficient number, since it is larger than the sum of its proper divisors (2974544).

3927988 is a wasteful number, since it uses less digits than its factorization.

3927988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4082 (or 4080 counting only the distinct ones).

The product of its digits is 217728, while the sum is 46.

The square root of 3927988 is about 1981.9152353216. The cubic root of 3927988 is about 157.7817314063.

The spelling of 3927988 in words is "three million, nine hundred twenty-seven thousand, nine hundred eighty-eight".