8378916 has 48 divisors (see below), whose sum is σ = 24065664. Its totient is φ = 2209536.

The previous prime is 8378893. The next prime is 8378987. The reversal of 8378916 is 6198738.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2745 + ... + 4928.

It is an arithmetic number, because the mean of its divisors is an integer number (501368).

Almost surely, 2^8378916 is an apocalyptic number.

It is an amenable number.

8378916 is an abundant number, since it is smaller than the sum of its proper divisors (15686748).

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

8378916 is a wasteful number, since it uses less digits than its factorization.

8378916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7700 (or 7698 counting only the distinct ones).

The product of its digits is 72576, while the sum is 42.

The square root of 8378916 is about 2894.6357283776. The cubic root of 8378916 is about 203.1090518761.

The spelling of 8378916 in words is "eight million, three hundred seventy-eight thousand, nine hundred sixteen".