3993975 has 48 divisors (see below), whose sum is σ = 7534240. Its totient is φ = 2073600.

The previous prime is 3993959. The next prime is 3993991. The reversal of 3993975 is 5793993.

3993975 is an esthetic number in base 13, because in such base its adjacent digits differ by 1.

It is an interprime number because it is at equal distance from previous prime (3993959) and next prime (3993991).

It is not a de Polignac number, because 3993975 - 2⁴ = 3993959 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 3993975.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 41127 + ... + 41223.

Almost surely, 2^3993975 is an apocalyptic number.

3993975 is a deficient number, since it is larger than the sum of its proper divisors (3540265).

3993975 is a wasteful number, since it uses less digits than its factorization.

3993975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177 (or 166 counting only the distinct ones).

The product of its digits is 229635, while the sum is 45.

The square root of 3993975 is about 1998.4931823752. The cubic root of 3993975 is about 158.6603643857.

The spelling of 3993975 in words is "three million, nine hundred ninety-three thousand, nine hundred seventy-five".