3978027 has 6 divisors (see below), whose sum is σ = 5746052. Its totient is φ = 2652012.

The previous prime is 3977999. The next prime is 3978031. The reversal of 3978027 is 7208793.

It is not a de Polignac number, because 3978027 - 2¹⁰ = 3977003 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3977982 and 3978000.

It is not an unprimeable number, because it can be changed into a prime (3978727) 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 5 ways as a sum of consecutive naturals, for example, 220993 + ... + 221010.

Almost surely, 2^3978027 is an apocalyptic number.

3978027 is a deficient number, since it is larger than the sum of its proper divisors (1768025).

3978027 is a wasteful number, since it uses less digits than its factorization.

3978027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 442009 (or 442006 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 36.

The square root of 3978027 is about 1994.4991852593. The cubic root of 3978027 is about 158.4489049713.

The spelling of 3978027 in words is "three million, nine hundred seventy-eight thousand, twenty-seven".