20773936 has 10 divisors (see below), whose sum is σ = 40249532. Its totient is φ = 10386960.

The previous prime is 20773931. The next prime is 20773939. The reversal of 20773936 is 63937702.

It is a junction number, because it is equal to n+sod(n) for n = 20773895 and 20773904.

It is not an unprimeable number, because it can be changed into a prime (20773931) 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, 649170 + ... + 649201.

Almost surely, 2^20773936 is an apocalyptic number.

It is an amenable number.

20773936 is a deficient number, since it is larger than the sum of its proper divisors (19475596).

20773936 is a wasteful number, since it uses less digits than its factorization.

20773936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1298379 (or 1298373 counting only the distinct ones).

The product of its (nonzero) digits is 47628, while the sum is 37.

The square root of 20773936 is about 4557.8433496556. The cubic root of 20773936 is about 274.8988542629.

The spelling of 20773936 in words is "twenty million, seven hundred seventy-three thousand, nine hundred thirty-six".