20796943 has 2 divisors, whose sum is σ = 20796944. Its totient is φ = 20796942.

The previous prime is 20796929. The next prime is 20796947. The reversal of 20796943 is 34969702.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20796943 - 2¹³ = 20788751 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20796896 and 20796905.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20796947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10398471 + 10398472.

It is an arithmetic number, because the mean of its divisors is an integer number (10398472).

Almost surely, 2^20796943 is an apocalyptic number.

20796943 is a deficient number, since it is larger than the sum of its proper divisors (1).

20796943 is an equidigital number, since it uses as much as digits as its factorization.

20796943 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 81648, while the sum is 40.

The square root of 20796943 is about 4560.3665422858. The cubic root of 20796943 is about 275.0002997242. Note that the first 3 decimals are identical.

The spelling of 20796943 in words is "twenty million, seven hundred ninety-six thousand, nine hundred forty-three".