20008675 has 24 divisors (see below), whose sum is σ = 25859456. Its totient is φ = 15344640.

The previous prime is 20008669. The next prime is 20008721. The reversal of 20008675 is 57680002.

It is a de Polignac number, because none of the positive numbers 2^k-20008675 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 in 23 ways as a sum of consecutive naturals, for example, 89614 + ... + 89836.

Almost surely, 2^20008675 is an apocalyptic number.

20008675 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

20008675 is a deficient number, since it is larger than the sum of its proper divisors (5850781).

20008675 is a wasteful number, since it uses less digits than its factorization.

20008675 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 367 (or 362 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 20008675 is about 4473.1057443347. The cubic root of 20008675 is about 271.4810019413.

Adding to 20008675 its reverse (57680002), we get a palindrome (77688677).

The spelling of 20008675 in words is "twenty million, eight thousand, six hundred seventy-five".