8725613 has 4 divisors (see below), whose sum is σ = 9396828. Its totient is φ = 8054400.

The previous prime is 8725609. The next prime is 8725621. The reversal of 8725613 is 3165278.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 896809 + 7828804 = 947^2 + 2798^2 .

It is a cyclic number.

It is not a de Polignac number, because 8725613 - 2² = 8725609 is a prime.

It is a super-2 number, since 2×8725613² = 152272644451538, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8725613.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8725643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 335588 + ... + 335613.

It is an arithmetic number, because the mean of its divisors is an integer number (2349207).

Almost surely, 2^8725613 is an apocalyptic number.

It is an amenable number.

8725613 is a deficient number, since it is larger than the sum of its proper divisors (671215).

8725613 is a wasteful number, since it uses less digits than its factorization.

8725613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 671214.

The product of its digits is 10080, while the sum is 32.

The square root of 8725613 is about 2953.9148599782. The cubic root of 8725613 is about 205.8726472720.

The spelling of 8725613 in words is "eight million, seven hundred twenty-five thousand, six hundred thirteen".