3978175 has 12 divisors (see below), whose sum is σ = 4961736. Its totient is φ = 3164000.

The previous prime is 3978167. The next prime is 3978179. The reversal of 3978175 is 5718793.

It is not a de Polignac number, because 3978175 - 2³ = 3978167 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3978179) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5325 + ... + 6025.

It is an arithmetic number, because the mean of its divisors is an integer number (413478).

Almost surely, 2^3978175 is an apocalyptic number.

3978175 is a deficient number, since it is larger than the sum of its proper divisors (983561).

3978175 is a wasteful number, since it uses less digits than its factorization.

3978175 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 938 (or 933 counting only the distinct ones).

The product of its digits is 52920, while the sum is 40.

The square root of 3978175 is about 1994.5362869600. The cubic root of 3978175 is about 158.4508699443.

The spelling of 3978175 in words is "three million, nine hundred seventy-eight thousand, one hundred seventy-five".