20796716 has 12 divisors (see below), whose sum is σ = 38309880. Its totient is φ = 9851040.

The previous prime is 20796707. The next prime is 20796731. The reversal of 20796716 is 61769702.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a self number, because there is not a number n which added to its sum of digits gives 20796716.

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 3 ways as a sum of consecutive naturals, for example, 136745 + ... + 136896.

It is an arithmetic number, because the mean of its divisors is an integer number (3192490).

Almost surely, 2^20796716 is an apocalyptic number.

It is an amenable number.

20796716 is a deficient number, since it is larger than the sum of its proper divisors (17513164).

20796716 is a wasteful number, since it uses less digits than its factorization.

20796716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273664 (or 273662 counting only the distinct ones).

The product of its (nonzero) digits is 31752, while the sum is 38.

The square root of 20796716 is about 4560.3416538676. The cubic root of 20796716 is about 274.9992991718. Note that the first 3 decimals are identical.

It can be divided in two parts, 20796 and 716, that added together give a palindrome (21512).

The spelling of 20796716 in words is "twenty million, seven hundred ninety-six thousand, seven hundred sixteen".