7906189 has 2 divisors, whose sum is σ = 7906190. Its totient is φ = 7906188.

The previous prime is 7906163. The next prime is 7906193. The reversal of 7906189 is 9816097.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7672900 + 233289 = 2770^2 + 483^2 .

It is a cyclic number.

It is not a de Polignac number, because 7906189 - 2¹⁵ = 7873421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7906289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3953094 + 3953095.

It is an arithmetic number, because the mean of its divisors is an integer number (3953095).

Almost surely, 2^7906189 is an apocalyptic number.

It is an amenable number.

7906189 is a deficient number, since it is larger than the sum of its proper divisors (1).

7906189 is an equidigital number, since it uses as much as digits as its factorization.

7906189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27216, while the sum is 40.

The square root of 7906189 is about 2811.7946226565. The cubic root of 7906189 is about 199.2151658722.

The spelling of 7906189 in words is "seven million, nine hundred six thousand, one hundred eighty-nine".