20793788 has 24 divisors (see below), whose sum is σ = 38755584. Its totient is φ = 9728000.

The previous prime is 20793781. The next prime is 20793791. The reversal of 20793788 is 88739702.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20793781) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12188 + ... + 13788.

It is an arithmetic number, because the mean of its divisors is an integer number (1614816).

Almost surely, 2^20793788 is an apocalyptic number.

It is an amenable number.

20793788 is a deficient number, since it is larger than the sum of its proper divisors (17961796).

20793788 is a wasteful number, since it uses less digits than its factorization.

20793788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1813 (or 1811 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 44.

The square root of 20793788 is about 4560.0206139885. The cubic root of 20793788 is about 274.9863927151.

The spelling of 20793788 in words is "twenty million, seven hundred ninety-three thousand, seven hundred eighty-eight".