8210065 has 8 divisors (see below), whose sum is σ = 10431720. Its totient is φ = 6181632.

The previous prime is 8210063. The next prime is 8210077. The reversal of 8210065 is 5600128.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 274576 + 7935489 = 524^2 + 2817^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 8210065 - 2¹ = 8210063 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8210063) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48210 + ... + 48379.

It is an arithmetic number, because the mean of its divisors is an integer number (1303965).

Almost surely, 2^8210065 is an apocalyptic number.

8210065 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

8210065 is a deficient number, since it is larger than the sum of its proper divisors (2221655).

8210065 is a wasteful number, since it uses less digits than its factorization.

8210065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96611.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 8210065 is about 2865.3210989346. The cubic root of 8210065 is about 201.7354393619.

The spelling of 8210065 in words is "eight million, two hundred ten thousand, sixty-five".