20888941 has 2 divisors, whose sum is σ = 20888942. Its totient is φ = 20888940.

The previous prime is 20888929. The next prime is 20888953. The reversal of 20888941 is 14988802.

It is a balanced prime because it is at equal distance from previous prime (20888929) and next prime (20888953).

It can be written as a sum of positive squares in only one way, i.e., 17724100 + 3164841 = 4210^2 + 1779^2 .

It is a cyclic number.

It is not a de Polignac number, because 20888941 - 2⁵ = 20888909 is a prime.

It is a super-2 number, since 2×20888941² = 872695712202962, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20888894 and 20888903.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20888041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10444470 + 10444471.

It is an arithmetic number, because the mean of its divisors is an integer number (10444471).

Almost surely, 2^20888941 is an apocalyptic number.

It is an amenable number.

20888941 is a deficient number, since it is larger than the sum of its proper divisors (1).

20888941 is an equidigital number, since it uses as much as digits as its factorization.

20888941 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36864, while the sum is 40.

The square root of 20888941 is about 4570.4421011539. The cubic root of 20888941 is about 275.4052032045.

The spelling of 20888941 in words is "twenty million, eight hundred eighty-eight thousand, nine hundred forty-one".