8089709 has 4 divisors (see below), whose sum is σ = 8118780. Its totient is φ = 8060640.

The previous prime is 8089693. The next prime is 8089727. The reversal of 8089709 is 9079808.

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 6360484 + 1729225 = 2522^2 + 1315^2 .

It is a cyclic number.

It is not a de Polignac number, because 8089709 - 2⁴ = 8089693 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8089769) 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, 14114 + ... + 14675.

It is an arithmetic number, because the mean of its divisors is an integer number (2029695).

Almost surely, 2^8089709 is an apocalyptic number.

It is an amenable number.

8089709 is a deficient number, since it is larger than the sum of its proper divisors (29071).

8089709 is a wasteful number, since it uses less digits than its factorization.

8089709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29070.

The product of its (nonzero) digits is 36288, while the sum is 41.

The square root of 8089709 is about 2844.2413751298. The cubic root of 8089709 is about 200.7447979372.

Subtracting 8089709 from its reverse (9079808), we obtain a palindrome (990099).

The spelling of 8089709 in words is "eight million, eighty-nine thousand, seven hundred nine".