7911089 has 2 divisors, whose sum is σ = 7911090. Its totient is φ = 7911088.

The previous prime is 7911077. The next prime is 7911109. The reversal of 7911089 is 9801197.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7246864 + 664225 = 2692^2 + 815^2 .

It is a cyclic number.

It is not a de Polignac number, because 7911089 - 2¹² = 7906993 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (7911689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3955544 + 3955545.

It is an arithmetic number, because the mean of its divisors is an integer number (3955545).

Almost surely, 2^7911089 is an apocalyptic number.

It is an amenable number.

7911089 is a deficient number, since it is larger than the sum of its proper divisors (1).

7911089 is an equidigital number, since it uses as much as digits as its factorization.

7911089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 35.

The square root of 7911089 is about 2812.6658173342. The cubic root of 7911089 is about 199.2563130764.

The spelling of 7911089 in words is "seven million, nine hundred eleven thousand, eighty-nine".