20793885 has 48 divisors (see below), whose sum is σ = 40766400. Its totient is φ = 8999424.

The previous prime is 20793859. The next prime is 20793931. The reversal of 20793885 is 58839702.

It is not a de Polignac number, because 20793885 - 2⁸ = 20793629 is a prime.

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 47 ways as a sum of consecutive naturals, for example, 13221 + ... + 14709.

It is an arithmetic number, because the mean of its divisors is an integer number (849300).

Almost surely, 2^20793885 is an apocalyptic number.

It is an amenable number.

20793885 is a deficient number, since it is larger than the sum of its proper divisors (19972515).

20793885 is a wasteful number, since it uses less digits than its factorization.

20793885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1530 (or 1523 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 42.

The square root of 20793885 is about 4560.0312498929. The cubic root of 20793885 is about 274.9868203050.

The spelling of 20793885 in words is "twenty million, seven hundred ninety-three thousand, eight hundred eighty-five".