8065969 has 4 divisors (see below), whose sum is σ = 8198260. Its totient is φ = 7933680.

The previous prime is 8065957. The next prime is 8065987. The reversal of 8065969 is 9695608.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 705600 + 7360369 = 840^2 + 2713^2 .

It is a cyclic number.

It is not a de Polignac number, because 8065969 - 2⁹ = 8065457 is a prime.

It is a super-2 number, since 2×8065969² = 130119711817922, which contains 22 as substring.

It is a Duffinian number.

8065969 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (8065909) 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 3 ways as a sum of consecutive naturals, for example, 66054 + ... + 66175.

It is an arithmetic number, because the mean of its divisors is an integer number (2049565).

Almost surely, 2^8065969 is an apocalyptic number.

It is an amenable number.

8065969 is a deficient number, since it is larger than the sum of its proper divisors (132291).

8065969 is a wasteful number, since it uses less digits than its factorization.

8065969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132290.

The product of its (nonzero) digits is 116640, while the sum is 43.

The square root of 8065969 is about 2840.0649640457. The cubic root of 8065969 is about 200.5482374719.

It can be divided in two parts, 80 and 65969, that added together give a square (66049 = 257²).

The spelling of 8065969 in words is "eight million, sixty-five thousand, nine hundred sixty-nine".