20683798 has 8 divisors (see below), whose sum is σ = 32850792. Its totient is φ = 9733536.

The previous prime is 20683787. The next prime is 20683801. The reversal of 20683798 is 89738602.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 304140 + ... + 304207.

It is an arithmetic number, because the mean of its divisors is an integer number (4106349).

Almost surely, 2^20683798 is an apocalyptic number.

20683798 is a deficient number, since it is larger than the sum of its proper divisors (12166994).

20683798 is a wasteful number, since it uses less digits than its factorization.

20683798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 608366.

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

The square root of 20683798 is about 4547.9443708119. The cubic root of 20683798 is about 274.5006829202.

The spelling of 20683798 in words is "twenty million, six hundred eighty-three thousand, seven hundred ninety-eight".