20886941 has 4 divisors (see below), whose sum is σ = 21331392. Its totient is φ = 20442492.

The previous prime is 20886919. The next prime is 20886953. The reversal of 20886941 is 14968802.

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: 14968802 = 2 ⋅7484401.

It is a cyclic number.

It is not a de Polignac number, because 20886941 - 2¹⁸ = 20624797 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20886895 and 20886904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20886911) 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, 222155 + ... + 222248.

It is an arithmetic number, because the mean of its divisors is an integer number (5332848).

Almost surely, 2^20886941 is an apocalyptic number.

It is an amenable number.

20886941 is a deficient number, since it is larger than the sum of its proper divisors (444451).

20886941 is an equidigital number, since it uses as much as digits as its factorization.

20886941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444450.

The product of its (nonzero) digits is 27648, while the sum is 38.

The square root of 20886941 is about 4570.2232987022. The cubic root of 20886941 is about 275.3964134181.

The spelling of 20886941 in words is "twenty million, eight hundred eighty-six thousand, nine hundred forty-one".