20708884 has 12 divisors (see below), whose sum is σ = 41417824. Its totient is φ = 8875224.

The previous prime is 20708881. The next prime is 20708893. The reversal of 20708884 is 48880702.

20708884 is an admirable number.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20708881) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 369774 + ... + 369829.

Almost surely, 2^20708884 is an apocalyptic number.

It is an amenable number.

20708884 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20708884 is a wasteful number, since it uses less digits than its factorization.

20708884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 739614 (or 739612 counting only the distinct ones).

The product of its (nonzero) digits is 28672, while the sum is 37.

The square root of 20708884 is about 4550.7014843868. The cubic root of 20708884 is about 274.6116126134.

The spelling of 20708884 in words is "twenty million, seven hundred eight thousand, eight hundred eighty-four".