8378516 has 12 divisors (see below), whose sum is σ = 14739732. Its totient is φ = 4167168.

The previous prime is 8378483. The next prime is 8378519. The reversal of 8378516 is 6158738.

It can be written as a sum of positive squares in 2 ways, for example, as 3225616 + 5152900 = 1796^2 + 2270^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 8378516.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8378519) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4655 + ... + 6198.

It is an arithmetic number, because the mean of its divisors is an integer number (1228311).

Almost surely, 2^8378516 is an apocalyptic number.

It is an amenable number.

8378516 is a deficient number, since it is larger than the sum of its proper divisors (6361216).

8378516 is a wasteful number, since it uses less digits than its factorization.

8378516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11050 (or 11048 counting only the distinct ones).

The product of its digits is 40320, while the sum is 38.

The square root of 8378516 is about 2894.5666342304. The cubic root of 8378516 is about 203.1058197590.

The spelling of 8378516 in words is "eight million, three hundred seventy-eight thousand, five hundred sixteen".