7945169 has 2 divisors, whose sum is σ = 7945170. Its totient is φ = 7945168.

The previous prime is 7945163. The next prime is 7945181. The reversal of 7945169 is 9615497.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7772944 + 172225 = 2788^2 + 415^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7945169 is a prime.

It is a super-3 number, since 3×7945169³ (a number of 22 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (7945163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3972584 + 3972585.

It is an arithmetic number, because the mean of its divisors is an integer number (3972585).

Almost surely, 2^7945169 is an apocalyptic number.

It is an amenable number.

7945169 is a deficient number, since it is larger than the sum of its proper divisors (1).

7945169 is an equidigital number, since it uses as much as digits as its factorization.

7945169 is an evil number, because the sum of its binary digits is even.

The product of its digits is 68040, while the sum is 41.

The square root of 7945169 is about 2818.7176162220. The cubic root of 7945169 is about 199.5420271046.

The spelling of 7945169 in words is "seven million, nine hundred forty-five thousand, one hundred sixty-nine".