8672513 has 2 divisors, whose sum is σ = 8672514. Its totient is φ = 8672512.

The previous prime is 8672509. The next prime is 8672519. The reversal of 8672513 is 3152768.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6310144 + 2362369 = 2512^2 + 1537^2 .

It is a cyclic number.

It is not a de Polignac number, because 8672513 - 2² = 8672509 is a prime.

It is a Chen prime.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 8672513.

It is not a weakly prime, because it can be changed into another prime (8672519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4336256 + 4336257.

It is an arithmetic number, because the mean of its divisors is an integer number (4336257).

Almost surely, 2^8672513 is an apocalyptic number.

It is an amenable number.

8672513 is a deficient number, since it is larger than the sum of its proper divisors (1).

8672513 is an equidigital number, since it uses as much as digits as its factorization.

8672513 is an odious number, because the sum of its binary digits is odd.

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

The square root of 8672513 is about 2944.9130717222. The cubic root of 8672513 is about 205.4541823764.

The spelling of 8672513 in words is "eight million, six hundred seventy-two thousand, five hundred thirteen".