20796216 has 32 divisors (see below), whose sum is σ = 59418240. Its totient is φ = 5941728.

The previous prime is 20796211. The next prime is 20796221. The reversal of 20796216 is 61269702.

It is an interprime number because it is at equal distance from previous prime (20796211) and next prime (20796221).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20796211) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 61726 + ... + 62061.

It is an arithmetic number, because the mean of its divisors is an integer number (1856820).

Almost surely, 2^20796216 is an apocalyptic number.

It is an amenable number.

20796216 is an abundant number, since it is smaller than the sum of its proper divisors (38622024).

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

20796216 is a wasteful number, since it uses less digits than its factorization.

20796216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123803 (or 123799 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 20796216 is about 4560.2868330841. The cubic root of 20796216 is about 274.9970952861.

It can be divided in two parts, 20796 and 216, that added together give a palindrome (21012).

The spelling of 20796216 in words is "twenty million, seven hundred ninety-six thousand, two hundred sixteen".