3975818 has 24 divisors (see below), whose sum is σ = 7494816. Its totient is φ = 1548360.

The previous prime is 3975791. The next prime is 3975827. The reversal of 3975818 is 8185793.

It is a happy number.

3975818 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 521 + ... + 2867.

It is an arithmetic number, because the mean of its divisors is an integer number (312284).

Almost surely, 2^3975818 is an apocalyptic number.

3975818 is a deficient number, since it is larger than the sum of its proper divisors (3518998).

3975818 is a wasteful number, since it uses less digits than its factorization.

3975818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2378 (or 2367 counting only the distinct ones).

The product of its digits is 60480, while the sum is 41.

The square root of 3975818 is about 1993.9453352587. The cubic root of 3975818 is about 158.4195706272.

It can be divided in two parts, 39 and 75818, that added together give a palindrome (75857).

The spelling of 3975818 in words is "three million, nine hundred seventy-five thousand, eight hundred eighteen".