20967043 has 2 divisors, whose sum is σ = 20967044. Its totient is φ = 20967042.

The previous prime is 20967041. The next prime is 20967059. The reversal of 20967043 is 34076902.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20967043 - 2¹ = 20967041 is a prime.

Together with 20967041, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 20966996 and 20967014.

It is not a weakly prime, because it can be changed into another prime (20967041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10483521 + 10483522.

It is an arithmetic number, because the mean of its divisors is an integer number (10483522).

Almost surely, 2^20967043 is an apocalyptic number.

20967043 is a deficient number, since it is larger than the sum of its proper divisors (1).

20967043 is an equidigital number, since it uses as much as digits as its factorization.

20967043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 20967043 is about 4578.9783795078. The cubic root of 20967043 is about 275.7480153026.

The spelling of 20967043 in words is "twenty million, nine hundred sixty-seven thousand, forty-three".