8478516 has 24 divisors (see below), whose sum is σ = 20157984. Its totient is φ = 2772640.

The previous prime is 8478511. The next prime is 8478521. The reversal of 8478516 is 6158748.

It is an interprime number because it is at equal distance from previous prime (8478511) and next prime (8478521).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8478511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6030 + ... + 7301.

It is an arithmetic number, because the mean of its divisors is an integer number (839916).

Almost surely, 2^8478516 is an apocalyptic number.

It is an amenable number.

8478516 is an abundant number, since it is smaller than the sum of its proper divisors (11679468).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8478516 is a wasteful number, since it uses less digits than its factorization.

8478516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13391 (or 13389 counting only the distinct ones).

The product of its digits is 53760, while the sum is 39.

The square root of 8478516 is about 2911.7891407174. The cubic root of 8478516 is about 203.9106683075.

The spelling of 8478516 in words is "eight million, four hundred seventy-eight thousand, five hundred sixteen".