8613725 has 18 divisors (see below), whose sum is σ = 11151630. Its totient is φ = 6592320.

The previous prime is 8613701. The next prime is 8613733. The reversal of 8613725 is 5273168.

It is a happy number.

It can be written as a sum of positive squares in 9 ways, for example, as 851929 + 7761796 = 923^2 + 2786^2 .

It is not a de Polignac number, because 8613725 - 2¹⁰ = 8612701 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8613691 and 8613700.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 78971 + ... + 79079.

It is an arithmetic number, because the mean of its divisors is an integer number (619535).

Almost surely, 2^8613725 is an apocalyptic number.

It is an amenable number.

8613725 is a deficient number, since it is larger than the sum of its proper divisors (2537905).

8613725 is a wasteful number, since it uses less digits than its factorization.

8613725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257 (or 143 counting only the distinct ones).

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

The square root of 8613725 is about 2934.9148198883. The cubic root of 8613725 is about 204.9888948971.

The spelling of 8613725 in words is "eight million, six hundred thirteen thousand, seven hundred twenty-five".