8631673 has 2 divisors, whose sum is σ = 8631674. Its totient is φ = 8631672.

The previous prime is 8631659. The next prime is 8631713. The reversal of 8631673 is 3761368.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5968249 + 2663424 = 2443^2 + 1632^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8631673 is a prime.

It is a super-4 number, since 4×8631673⁴ (a number of 29 digits) contains 4444 as substring.

It is not a weakly prime, because it can be changed into another prime (8631373) by changing a digit.

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 as a sum of consecutive naturals, namely, 4315836 + 4315837.

It is an arithmetic number, because the mean of its divisors is an integer number (4315837).

Almost surely, 2^8631673 is an apocalyptic number.

It is an amenable number.

8631673 is a deficient number, since it is larger than the sum of its proper divisors (1).

8631673 is an equidigital number, since it uses as much as digits as its factorization.

8631673 is an odious number, because the sum of its binary digits is odd.

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

The square root of 8631673 is about 2937.9708984263. The cubic root of 8631673 is about 205.1311712561.

The spelling of 8631673 in words is "eight million, six hundred thirty-one thousand, six hundred seventy-three".