7879215 has 16 divisors (see below), whose sum is σ = 12700800. Its totient is φ = 4170912.

The previous prime is 7879199. The next prime is 7879219. The reversal of 7879215 is 5129787.

It is not a de Polignac number, because 7879215 - 2⁴ = 7879199 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7879219) 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 15 ways as a sum of consecutive naturals, for example, 196 + ... + 3974.

It is an arithmetic number, because the mean of its divisors is an integer number (793800).

Almost surely, 2^7879215 is an apocalyptic number.

7879215 is a deficient number, since it is larger than the sum of its proper divisors (4821585).

7879215 is a wasteful number, since it uses less digits than its factorization.

7879215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3926.

The product of its digits is 35280, while the sum is 39.

The square root of 7879215 is about 2806.9939437056. The cubic root of 7879215 is about 198.9883497805.

The spelling of 7879215 in words is "seven million, eight hundred seventy-nine thousand, two hundred fifteen".