3979959 has 4 divisors (see below), whose sum is σ = 5306616. Its totient is φ = 2653304.

The previous prime is 3979957. The next prime is 3979967. The reversal of 3979959 is 9599793.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3979959 - 2¹ = 3979957 is a prime.

It is an Ulam number.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3979957) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 663324 + ... + 663329.

It is an arithmetic number, because the mean of its divisors is an integer number (1326654).

Almost surely, 2^3979959 is an apocalyptic number.

3979959 is a deficient number, since it is larger than the sum of its proper divisors (1326657).

3979959 is a wasteful number, since it uses less digits than its factorization.

3979959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1326656.

The product of its digits is 688905, while the sum is 51.

The square root of 3979959 is about 1994.9834585780. The cubic root of 3979959 is about 158.4745520018.

The spelling of 3979959 in words is "three million, nine hundred seventy-nine thousand, nine hundred fifty-nine".