8072725 has 12 divisors (see below), whose sum is σ = 10087524. Its totient is φ = 6408320.

The previous prime is 8072717. The next prime is 8072737. The reversal of 8072725 is 5272708.

It can be written as a sum of positive squares in 6 ways, for example, as 576081 + 7496644 = 759^2 + 2738^2 .

It is not a de Polignac number, because 8072725 - 2³ = 8072717 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 2247 + ... + 4603.

It is an arithmetic number, because the mean of its divisors is an integer number (840627).

Almost surely, 2^8072725 is an apocalyptic number.

It is an amenable number.

8072725 is a deficient number, since it is larger than the sum of its proper divisors (2014799).

8072725 is a wasteful number, since it uses less digits than its factorization.

8072725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2504 (or 2499 counting only the distinct ones).

The product of its (nonzero) digits is 7840, while the sum is 31.

The square root of 8072725 is about 2841.2541245021. The cubic root of 8072725 is about 200.6042144529.

The spelling of 8072725 in words is "eight million, seventy-two thousand, seven hundred twenty-five".