3979942 has 8 divisors (see below), whose sum is σ = 6131376. Its totient is φ = 1936152.

The previous prime is 3979901. The next prime is 3979957. The reversal of 3979942 is 2499793.

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

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 (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26818 + ... + 26965.

It is an arithmetic number, because the mean of its divisors is an integer number (766422).

Almost surely, 2^3979942 is an apocalyptic number.

3979942 is a deficient number, since it is larger than the sum of its proper divisors (2151434).

3979942 is a wasteful number, since it uses less digits than its factorization.

3979942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53822.

The product of its digits is 122472, while the sum is 43.

The square root of 3979942 is about 1994.9791978865. The cubic root of 3979942 is about 158.4743263654.

The spelling of 3979942 in words is "three million, nine hundred seventy-nine thousand, nine hundred forty-two".