6920189 has 2 divisors, whose sum is σ = 6920190. Its totient is φ = 6920188.

The previous prime is 6920149. The next prime is 6920201. The reversal of 6920189 is 9810296.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6416089 + 504100 = 2533^2 + 710^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6920189 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6920129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3460094 + 3460095.

It is an arithmetic number, because the mean of its divisors is an integer number (3460095).

Almost surely, 2^6920189 is an apocalyptic number.

It is an amenable number.

6920189 is a deficient number, since it is larger than the sum of its proper divisors (1).

6920189 is an equidigital number, since it uses as much as digits as its factorization.

6920189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 35.

The square root of 6920189 is about 2630.6252108577. The cubic root of 6920189 is about 190.5633235566.

The spelling of 6920189 in words is "six million, nine hundred twenty thousand, one hundred eighty-nine".