20993092 has 6 divisors (see below), whose sum is σ = 36737918. Its totient is φ = 10496544.

The previous prime is 20993087. The next prime is 20993111. The reversal of 20993092 is 29039902.

It can be written as a sum of positive squares in only one way, i.e., 17774656 + 3218436 = 4216^2 + 1794^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2624133 + ... + 2624140.

Almost surely, 2^20993092 is an apocalyptic number.

It is an amenable number.

20993092 is a deficient number, since it is larger than the sum of its proper divisors (15744826).

20993092 is a wasteful number, since it uses less digits than its factorization.

20993092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5248277 (or 5248275 counting only the distinct ones).

The product of its (nonzero) digits is 8748, while the sum is 34.

The square root of 20993092 is about 4581.8219083679. The cubic root of 20993092 is about 275.8621624978.

The spelling of 20993092 in words is "twenty million, nine hundred ninety-three thousand, ninety-two".