8265621 has 48 divisors (see below), whose sum is σ = 14546304. Its totient is φ = 4073472.

The previous prime is 8265619. The next prime is 8265629. The reversal of 8265621 is 1265628.

It is not a de Polignac number, because 8265621 - 2¹ = 8265619 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8265629) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 60265 + ... + 60401.

It is an arithmetic number, because the mean of its divisors is an integer number (303048).

Almost surely, 2^8265621 is an apocalyptic number.

It is an amenable number.

8265621 is a deficient number, since it is larger than the sum of its proper divisors (6280683).

8265621 is a wasteful number, since it uses less digits than its factorization.

8265621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190 (or 177 counting only the distinct ones).

The product of its digits is 5760, while the sum is 30.

The square root of 8265621 is about 2874.9993043477. Note that the first 3 decimals coincide. The cubic root of 8265621 is about 202.1894523619.

It can be divided in two parts, 82 and 65621, that added together give a triangular number (65703 = T₃₆₂).

The spelling of 8265621 in words is "eight million, two hundred sixty-five thousand, six hundred twenty-one".