8291725 has 24 divisors (see below), whose sum is σ = 11443712. Its totient is φ = 5918400.

The previous prime is 8291713. The next prime is 8291729. The reversal of 8291725 is 5271928.

It is a de Polignac number, because none of the positive numbers 2^k-8291725 is a prime.

It is an Ulam number.

8291725 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8291729) 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 23 ways as a sum of consecutive naturals, for example, 9664 + ... + 10486.

Almost surely, 2^8291725 is an apocalyptic number.

It is an amenable number.

8291725 is a deficient number, since it is larger than the sum of its proper divisors (3151987).

8291725 is a wasteful number, since it uses less digits than its factorization.

8291725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 877 (or 872 counting only the distinct ones).

The product of its digits is 10080, while the sum is 34.

The square root of 8291725 is about 2879.5355528279. The cubic root of 8291725 is about 202.4020763143.

The spelling of 8291725 in words is "eight million, two hundred ninety-one thousand, seven hundred twenty-five".