20793868 has 6 divisors (see below), whose sum is σ = 36389276. Its totient is φ = 10396932.

The previous prime is 20793859. The next prime is 20793931. The reversal of 20793868 is 86839702.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2599230 + ... + 2599237.

Almost surely, 2^20793868 is an apocalyptic number.

It is an amenable number.

20793868 is a deficient number, since it is larger than the sum of its proper divisors (15595408).

20793868 is a wasteful number, since it uses less digits than its factorization.

20793868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5198471 (or 5198469 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 43.

The square root of 20793868 is about 4560.0293858702. The cubic root of 20793868 is about 274.9867453667.

The spelling of 20793868 in words is "twenty million, seven hundred ninety-three thousand, eight hundred sixty-eight".