7265665 has 8 divisors (see below), whose sum is σ = 9511488. Its totient is φ = 5284080.

The previous prime is 7265663. The next prime is 7265701. The reversal of 7265665 is 5665627.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 7265665 - 2¹ = 7265663 is a prime.

It is a d-powerful number, because it can be written as 7² + 2⁷ + 6 + 5⁹ + 6⁸ + 6⁸ + 5⁹ .

It is a Duffinian number.

7265665 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (7265663) 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 in 7 ways as a sum of consecutive naturals, for example, 65997 + ... + 66106.

It is an arithmetic number, because the mean of its divisors is an integer number (1188936).

Almost surely, 2^7265665 is an apocalyptic number.

It is an amenable number.

7265665 is a deficient number, since it is larger than the sum of its proper divisors (2245823).

7265665 is a wasteful number, since it uses less digits than its factorization.

7265665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132119.

The product of its digits is 75600, while the sum is 37.

The square root of 7265665 is about 2695.4897514181. The cubic root of 7265665 is about 193.6831278064.

The spelling of 7265665 in words is "seven million, two hundred sixty-five thousand, six hundred sixty-five".