8479815 has 16 divisors (see below), whose sum is σ = 13884288. Its totient is φ = 4417056.

The previous prime is 8479813. The next prime is 8479817. The reversal of 8479815 is 5189748.

8479815 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (8479813) and next prime (8479817).

It is not a de Polignac number, because 8479815 - 2¹ = 8479813 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8479813) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5929 + ... + 7218.

It is an arithmetic number, because the mean of its divisors is an integer number (867768).

Almost surely, 2^8479815 is an apocalyptic number.

8479815 is a deficient number, since it is larger than the sum of its proper divisors (5404473).

8479815 is a wasteful number, since it uses less digits than its factorization.

8479815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13198.

The product of its digits is 80640, while the sum is 42.

The square root of 8479815 is about 2912.0121909085. The cubic root of 8479815 is about 203.9210815462.

The spelling of 8479815 in words is "eight million, four hundred seventy-nine thousand, eight hundred fifteen".