20010893 has 4 divisors (see below), whose sum is σ = 22869600. Its totient is φ = 17152188.

The previous prime is 20010889. The next prime is 20010917. The reversal of 20010893 is 39801002.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 39801002 = 2 ⋅19900501.

It is a cyclic number.

It is not a de Polignac number, because 20010893 - 2² = 20010889 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20010863) 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 3 ways as a sum of consecutive naturals, for example, 1429343 + ... + 1429356.

It is an arithmetic number, because the mean of its divisors is an integer number (5717400).

Almost surely, 2^20010893 is an apocalyptic number.

It is an amenable number.

20010893 is a deficient number, since it is larger than the sum of its proper divisors (2858707).

20010893 is an equidigital number, since it uses as much as digits as its factorization.

20010893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2858706.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 20010893 is about 4473.3536636398. The cubic root of 20010893 is about 271.4910329672.

Adding to 20010893 its reverse (39801002), we get a palindrome (59811895).

The spelling of 20010893 in words is "twenty million, ten thousand, eight hundred ninety-three".