20796812 has 24 divisors (see below), whose sum is σ = 37850736. Its totient is φ = 9989568.

The previous prime is 20796781. The next prime is 20796817. The reversal of 20796812 is 21869702.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (20796817) 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, 11438 + ... + 13130.

It is an arithmetic number, because the mean of its divisors is an integer number (1577114).

Almost surely, 2^20796812 is an apocalyptic number.

It is an amenable number.

20796812 is a deficient number, since it is larger than the sum of its proper divisors (17053924).

20796812 is a wasteful number, since it uses less digits than its factorization.

20796812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1817 (or 1815 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 20796812 is about 4560.3521793826. The cubic root of 20796812 is about 274.9997223138. Note that the first 3 decimals are identical.

The spelling of 20796812 in words is "twenty million, seven hundred ninety-six thousand, eight hundred twelve".