8260065 has 72 divisors (see below), whose sum is σ = 16556904. Its totient is φ = 3801600.

The previous prime is 8260061. The next prime is 8260067. The reversal of 8260065 is 5600628.

8260065 = 276² + 277² + ... + 357².

8260065 is digitally balanced in base 3 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 576081 + 7683984 = 759^2 + 2772^2 .

It is not a de Polignac number, because 8260065 - 2² = 8260061 is a prime.

8260065 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8260061) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 201445 + ... + 201485.

It is an arithmetic number, because the mean of its divisors is an integer number (229957).

Almost surely, 2^8260065 is an apocalyptic number.

It is an amenable number.

8260065 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

8260065 is a wasteful number, since it uses less digits than its factorization.

8260065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111 (or 97 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 8260065 is about 2874.0328808140. The cubic root of 8260065 is about 202.1441395176.

The spelling of 8260065 in words is "eight million, two hundred sixty thousand, sixty-five".