7917065 has 12 divisors (see below), whose sum is σ = 10260684. Its totient is φ = 5829696.

The previous prime is 7917061. The next prime is 7917067. The reversal of 7917065 is 5607197.

It can be written as a sum of positive squares in 6 ways, for example, as 4096 + 7912969 = 64^2 + 2813^2 .

It is not a de Polignac number, because 7917065 - 2² = 7917061 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7917061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22511 + ... + 22859.

It is an arithmetic number, because the mean of its divisors is an integer number (855057).

Almost surely, 2^7917065 is an apocalyptic number.

It is an amenable number.

7917065 is a deficient number, since it is larger than the sum of its proper divisors (2343619).

7917065 is an equidigital number, since it uses as much as digits as its factorization.

7917065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 716 (or 367 counting only the distinct ones).

The product of its (nonzero) digits is 13230, while the sum is 35.

The square root of 7917065 is about 2813.7279541562. The cubic root of 7917065 is about 199.3064728804.

The spelling of 7917065 in words is "seven million, nine hundred seventeen thousand, sixty-five".