20000986 has 8 divisors (see below), whose sum is σ = 30072384. Its totient is φ = 9976860.

The previous prime is 20000971. The next prime is 20001001. The reversal of 20000986 is 68900002.

It is an interprime number because it is at equal distance from previous prime (20000971) and next prime (20001001).

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

It is a self number, because there is not a number n which added to its sum of digits gives 20000986.

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 3 ways as a sum of consecutive naturals, for example, 10740 + ... + 12463.

It is an arithmetic number, because the mean of its divisors is an integer number (3759048).

Almost surely, 2^20000986 is an apocalyptic number.

20000986 is a deficient number, since it is larger than the sum of its proper divisors (10071398).

20000986 is a wasteful number, since it uses less digits than its factorization.

20000986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23636.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 20000986 is about 4472.2461917922. The cubic root of 20000986 is about 271.4462222791.

Adding to 20000986 its reverse (68900002), we get a palindrome (88900988).

The spelling of 20000986 in words is "twenty million, nine hundred eighty-six", and thus it is an aban number.