3943959 has 8 divisors (see below), whose sum is σ = 5286912. Its totient is φ = 2615160.

The previous prime is 3943957. The next prime is 3943967. The reversal of 3943959 is 9593493.

It is a happy number.

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

It is not a de Polignac number, because 3943959 - 2¹ = 3943957 is a prime.

3943959 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 3943959.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3943957) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2869 + ... + 4014.

It is an arithmetic number, because the mean of its divisors is an integer number (660864).

Almost surely, 2^3943959 is an apocalyptic number.

3943959 is a deficient number, since it is larger than the sum of its proper divisors (1342953).

3943959 is a wasteful number, since it uses less digits than its factorization.

3943959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7077.

The product of its digits is 131220, while the sum is 42.

The square root of 3943959 is about 1985.9403314299. The cubic root of 3943959 is about 157.9952864053.

The spelling of 3943959 in words is "three million, nine hundred forty-three thousand, nine hundred fifty-nine".