3975859 has 4 divisors (see below), whose sum is σ = 3980016. Its totient is φ = 3971704.

The previous prime is 3975857. The next prime is 3975863. The reversal of 3975859 is 9585793.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 3975859 - 2¹ = 3975857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3975857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 162 + ... + 2824.

It is an arithmetic number, because the mean of its divisors is an integer number (995004).

Almost surely, 2^3975859 is an apocalyptic number.

3975859 is a deficient number, since it is larger than the sum of its proper divisors (4157).

3975859 is a wasteful number, since it uses less digits than its factorization.

3975859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4156.

The product of its digits is 340200, while the sum is 46.

The square root of 3975859 is about 1993.9556163566. The cubic root of 3975859 is about 158.4201151843.

The spelling of 3975859 in words is "three million, nine hundred seventy-five thousand, eight hundred fifty-nine".