20768876 has 6 divisors (see below), whose sum is σ = 36345540. Its totient is φ = 10384436.

The previous prime is 20768873. The next prime is 20768887. The reversal of 20768876 is 67886702.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (20768873) 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 as a sum of consecutive naturals, namely, 2596106 + ... + 2596113.

It is an arithmetic number, because the mean of its divisors is an integer number (6057590).

Almost surely, 2^20768876 is an apocalyptic number.

It is an amenable number.

20768876 is a deficient number, since it is larger than the sum of its proper divisors (15576664).

20768876 is a wasteful number, since it uses less digits than its factorization.

20768876 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5192223 (or 5192221 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 44.

The square root of 20768876 is about 4557.2882287606. The cubic root of 20768876 is about 274.8765330050.

The spelling of 20768876 in words is "twenty million, seven hundred sixty-eight thousand, eight hundred seventy-six".