8449725 has 12 divisors (see below), whose sum is σ = 13970336. Its totient is φ = 4506480.

The previous prime is 8449723. The next prime is 8449729. The reversal of 8449725 is 5279448.

It is not a de Polignac number, because 8449725 - 2¹ = 8449723 is a prime.

It is an Ulam number.

It is a d-powerful number, because it can be written as 8 + 4⁵ + 4⁵ + 9⁵ + 7 + 2²³ + 5 .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8449723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 56257 + ... + 56406.

Almost surely, 2^8449725 is an apocalyptic number.

It is an amenable number.

8449725 is a deficient number, since it is larger than the sum of its proper divisors (5520611).

8449725 is a wasteful number, since it uses less digits than its factorization.

8449725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112676 (or 112671 counting only the distinct ones).

The product of its digits is 80640, while the sum is 39.

The square root of 8449725 is about 2906.8410689269. The cubic root of 8449725 is about 203.6795960349.

The spelling of 8449725 in words is "eight million, four hundred forty-nine thousand, seven hundred twenty-five".