20789926 has 8 divisors (see below), whose sum is σ = 32260320. Its totient is φ = 10036488.

The previous prime is 20789921. The next prime is 20789927. The reversal of 20789926 is 62998702.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20789921) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 179166 + ... + 179281.

It is an arithmetic number, because the mean of its divisors is an integer number (4032540).

Almost surely, 2^20789926 is an apocalyptic number.

20789926 is a deficient number, since it is larger than the sum of its proper divisors (11470394).

20789926 is a wasteful number, since it uses less digits than its factorization.

20789926 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358478.

The product of its (nonzero) digits is 108864, while the sum is 43.

The square root of 20789926 is about 4559.5971313264. The cubic root of 20789926 is about 274.9693673868.

The spelling of 20789926 in words is "twenty million, seven hundred eighty-nine thousand, nine hundred twenty-six".