20893000 has 64 divisors (see below), whose sum is σ = 51807600. Its totient is φ = 7859200.

The previous prime is 20892979. The next prime is 20893001. The reversal of 20893000 is 39802.

It can be written as a sum of positive squares in 8 ways, for example, as 7918596 + 12974404 = 2814^2 + 3602^2 .

It is not an unprimeable number, because it can be changed into a prime (20893001) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 16386 + ... + 17614.

Almost surely, 2^20893000 is an apocalyptic number.

20893000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20893000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25903800).

20893000 is an abundant number, since it is smaller than the sum of its proper divisors (30914600).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20893000 is a wasteful number, since it uses less digits than its factorization.

20893000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1267 (or 1253 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 20893000 is about 4570.8861285313. The cubic root of 20893000 is about 275.4230403513.

The spelling of 20893000 in words is "twenty million, eight hundred ninety-three thousand".