3975694 has 8 divisors (see below), whose sum is σ = 6102360. Its totient is φ = 1941576.

The previous prime is 3975677. The next prime is 3975701. The reversal of 3975694 is 4965793.

3975694 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×3975694² = 31612285563272, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a self number, because there is not a number n which added to its sum of digits gives 3975694.

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 3 ways as a sum of consecutive naturals, for example, 23029 + ... + 23200.

It is an arithmetic number, because the mean of its divisors is an integer number (762795).

Almost surely, 2^3975694 is an apocalyptic number.

3975694 is a deficient number, since it is larger than the sum of its proper divisors (2126666).

3975694 is a wasteful number, since it uses less digits than its factorization.

3975694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46274.

The product of its digits is 204120, while the sum is 43.

The square root of 3975694 is about 1993.9142408840. The cubic root of 3975694 is about 158.4179236511.

Subtracting 3975694 from its reverse (4965793), we obtain a palindrome (990099).

The spelling of 3975694 in words is "three million, nine hundred seventy-five thousand, six hundred ninety-four".