8378745 has 8 divisors (see below), whose sum is σ = 13406016. Its totient is φ = 4468656.

The previous prime is 8378731. The next prime is 8378771. The reversal of 8378745 is 5478738.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 8378745 - 2⁶ = 8378681 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 8378697 and 8378706.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 279277 + ... + 279306.

It is an arithmetic number, because the mean of its divisors is an integer number (1675752).

Almost surely, 2^8378745 is an apocalyptic number.

It is an amenable number.

8378745 is a deficient number, since it is larger than the sum of its proper divisors (5027271).

8378745 is a wasteful number, since it uses less digits than its factorization.

8378745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 558591.

The product of its digits is 188160, while the sum is 42.

The square root of 8378745 is about 2894.6061908315. The cubic root of 8378745 is about 203.1076701586.

The spelling of 8378745 in words is "eight million, three hundred seventy-eight thousand, seven hundred forty-five".