3979859 has 8 divisors (see below), whose sum is σ = 4302480. Its totient is φ = 3659616.

The previous prime is 3979849. The next prime is 3979861. The reversal of 3979859 is 9589793.

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 3979859 - 2⁸ = 3979603 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3979849) 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, 4664 + ... + 5450.

It is an arithmetic number, because the mean of its divisors is an integer number (537810).

Almost surely, 2^3979859 is an apocalyptic number.

3979859 is a deficient number, since it is larger than the sum of its proper divisors (322621).

3979859 is a wasteful number, since it uses less digits than its factorization.

3979859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1189.

The product of its digits is 612360, while the sum is 50.

The square root of 3979859 is about 1994.9583955562. The cubic root of 3979859 is about 158.4732247195.

The spelling of 3979859 in words is "three million, nine hundred seventy-nine thousand, eight hundred fifty-nine".