8673613 has 8 divisors (see below), whose sum is σ = 9391928. Its totient is φ = 7962624.

The previous prime is 8673611. The next prime is 8673677. The reversal of 8673613 is 3163768.

8673613 = 2082² + 2083².

It can be written as a sum of positive squares in 4 ways, for example, as 619369 + 8054244 = 787^2 + 2838^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a 8-Lehmer number, since φ(8673613) divides (8673613-1)⁸.

It is a cyclic number.

It is not a de Polignac number, because 8673613 - 2¹ = 8673611 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8673611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 781 + ... + 4237.

It is an arithmetic number, because the mean of its divisors is an integer number (1173991).

Almost surely, 2^8673613 is an apocalyptic number.

8673613 is the 2083-rd centered square number.

It is an amenable number.

8673613 is a deficient number, since it is larger than the sum of its proper divisors (718315).

8673613 is a wasteful number, since it uses less digits than its factorization.

8673613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3663.

The product of its digits is 18144, while the sum is 34.

The square root of 8673613 is about 2945.0998285287. The cubic root of 8673613 is about 205.4628684419.

The spelling of 8673613 in words is "eight million, six hundred seventy-three thousand, six hundred thirteen".