8378725 has 6 divisors (see below), whose sum is σ = 10389650. Its totient is φ = 6702960.

The previous prime is 8378723. The next prime is 8378731. The reversal of 8378725 is 5278738.

It can be written as a sum of positive squares in 3 ways, for example, as 49729 + 8328996 = 223^2 + 2886^2 .

It is not a de Polignac number, because 8378725 - 2¹ = 8378723 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8378723) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 167550 + ... + 167599.

Almost surely, 2^8378725 is an apocalyptic number.

It is an amenable number.

8378725 is a deficient number, since it is larger than the sum of its proper divisors (2010925).

8378725 is a wasteful number, since it uses less digits than its factorization.

8378725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335159 (or 335154 counting only the distinct ones).

The product of its digits is 94080, while the sum is 40.

The square root of 8378725 is about 2894.6027361281. The cubic root of 8378725 is about 203.1075085530.

The spelling of 8378725 in words is "eight million, three hundred seventy-eight thousand, seven hundred twenty-five".