3879215 has 16 divisors (see below), whose sum is σ = 4838400. Its totient is φ = 2983680.

The previous prime is 3879199. The next prime is 3879221. The reversal of 3879215 is 5129783.

It is not a de Polignac number, because 3879215 - 2⁴ = 3879199 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 25961 + ... + 26109.

It is an arithmetic number, because the mean of its divisors is an integer number (302400).

Almost surely, 2^3879215 is an apocalyptic number.

3879215 is a deficient number, since it is larger than the sum of its proper divisors (959185).

3879215 is a wasteful number, since it uses less digits than its factorization.

3879215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322.

The product of its digits is 15120, while the sum is 35.

The square root of 3879215 is about 1969.5722885947. The cubic root of 3879215 is about 157.1259621742.

The spelling of 3879215 in words is "three million, eight hundred seventy-nine thousand, two hundred fifteen".