3979975 has 6 divisors (see below), whose sum is σ = 4935200. Its totient is φ = 3183960.

The previous prime is 3979967. The next prime is 3979981. The reversal of 3979975 is 5799793.

It is not a de Polignac number, because 3979975 - 2³ = 3979967 is a prime.

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, 79575 + ... + 79624.

Almost surely, 2^3979975 is an apocalyptic number.

3979975 is a deficient number, since it is larger than the sum of its proper divisors (955225).

3979975 is a wasteful number, since it uses less digits than its factorization.

3979975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159209 (or 159204 counting only the distinct ones).

The product of its digits is 535815, while the sum is 49.

The square root of 3979975 is about 1994.9874686323. The cubic root of 3979975 is about 158.4747643649.

The spelling of 3979975 in words is "three million, nine hundred seventy-nine thousand, nine hundred seventy-five".