8630505 has 24 divisors (see below), whose sum is σ = 16111368. Its totient is φ = 4248576.

The previous prime is 8630491. The next prime is 8630519. The reversal of 8630505 is 5050368.

It is an interprime number because it is at equal distance from previous prime (8630491) and next prime (8630519).

It can be written as a sum of positive squares in 4 ways, for example, as 127449 + 8503056 = 357^2 + 2916^2 .

It is not a de Polignac number, because 8630505 - 2⁸ = 8630249 is a prime.

8630505 is a lucky number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6792 + ... + 7961.

It is an arithmetic number, because the mean of its divisors is an integer number (671307).

Almost surely, 2^8630505 is an apocalyptic number.

It is an amenable number.

8630505 is a deficient number, since it is larger than the sum of its proper divisors (7480863).

8630505 is a wasteful number, since it uses less digits than its factorization.

8630505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14777 (or 14774 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 8630505 is about 2937.7721150559. The cubic root of 8630505 is about 205.1219183563.

The spelling of 8630505 in words is "eight million, six hundred thirty thousand, five hundred five".