8280669 has 4 divisors (see below), whose sum is σ = 11040896. Its totient is φ = 5520444.

The previous prime is 8280653. The next prime is 8280677. The reversal of 8280669 is 9660828.

8280669 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 8280669 - 2⁴ = 8280653 is a prime.

It is a super-2 number, since 2×8280669² = 137138958175122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

8280669 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8280619) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1380109 + ... + 1380114.

It is an arithmetic number, because the mean of its divisors is an integer number (2760224).

Almost surely, 2^8280669 is an apocalyptic number.

It is an amenable number.

8280669 is a deficient number, since it is larger than the sum of its proper divisors (2760227).

8280669 is a wasteful number, since it uses less digits than its factorization.

8280669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2760226.

The product of its (nonzero) digits is 41472, while the sum is 39.

The square root of 8280669 is about 2877.6151584255. The cubic root of 8280669 is about 202.3120768395.

The spelling of 8280669 in words is "eight million, two hundred eighty thousand, six hundred sixty-nine".