3979381 has 8 divisors (see below), whose sum is σ = 4563200. Its totient is φ = 3399408.

The previous prime is 3979363. The next prime is 3979427. The reversal of 3979381 is 1839793.

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

It is a cyclic number.

It is not a de Polignac number, because 3979381 - 2²¹ = 1882229 is a prime.

It is a super-2 number, since 2×3979381² = 31670946286322, which contains 22 as substring.

It is a Duffinian number.

3979381 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3979361) 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 7 ways as a sum of consecutive naturals, for example, 1795 + ... + 3343.

It is an arithmetic number, because the mean of its divisors is an integer number (570400).

Almost surely, 2^3979381 is an apocalyptic number.

It is an amenable number.

3979381 is a deficient number, since it is larger than the sum of its proper divisors (583819).

3979381 is a wasteful number, since it uses less digits than its factorization.

3979381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1923.

The product of its digits is 40824, while the sum is 40.

The square root of 3979381 is about 1994.8385899616. The cubic root of 3979381 is about 158.4668800027.

The spelling of 3979381 in words is "three million, nine hundred seventy-nine thousand, three hundred eighty-one".