8321265 has 32 divisors (see below), whose sum is σ = 15085440. Its totient is φ = 4350528.

The previous prime is 8321249. The next prime is 8321273. The reversal of 8321265 is 5621238.

It is not a de Polignac number, because 8321265 - 2⁴ = 8321249 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6574 + ... + 7736.

It is an arithmetic number, because the mean of its divisors is an integer number (471420).

Almost surely, 2^8321265 is an apocalyptic number.

It is an amenable number.

8321265 is a deficient number, since it is larger than the sum of its proper divisors (6764175).

8321265 is a wasteful number, since it uses less digits than its factorization.

8321265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1230 (or 1224 counting only the distinct ones).

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

The square root of 8321265 is about 2884.6602919581. The cubic root of 8321265 is about 202.6421498481.

Subtracting from 8321265 its sum of digits (27), we obtain a palindrome (8321238).

The spelling of 8321265 in words is "eight million, three hundred twenty-one thousand, two hundred sixty-five".