4378725 has 48 divisors (see below), whose sum is σ = 8680000. Its totient is φ = 2151360.

The previous prime is 4378697. The next prime is 4378727. The reversal of 4378725 is 5278734.

It is not a de Polignac number, because 4378725 - 2¹³ = 4370533 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4378725.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4378727) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8526 + ... + 9024.

Almost surely, 2^4378725 is an apocalyptic number.

4378725 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4378725 is a deficient number, since it is larger than the sum of its proper divisors (4301275).

4378725 is a wasteful number, since it uses less digits than its factorization.

4378725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 531 (or 520 counting only the distinct ones).

The product of its digits is 47040, while the sum is 36.

The square root of 4378725 is about 2092.5403221921. The cubic root of 4378725 is about 163.5997203304.

Subtracting 4378725 from its reverse (5278734), we obtain a palindrome (900009).

The spelling of 4378725 in words is "four million, three hundred seventy-eight thousand, seven hundred twenty-five".