8049709 has 4 divisors (see below), whose sum is σ = 8108604. Its totient is φ = 7990816.

The previous prime is 8049703. The next prime is 8049719. The reversal of 8049709 is 9079408.

It is a happy number.

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 6487209 + 1562500 = 2547^2 + 1250^2 .

It is a cyclic number.

It is not a de Polignac number, because 8049709 - 2¹⁷ = 7918637 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 (8049703) 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, 29242 + ... + 29515.

It is an arithmetic number, because the mean of its divisors is an integer number (2027151).

Almost surely, 2^8049709 is an apocalyptic number.

It is an amenable number.

8049709 is a deficient number, since it is larger than the sum of its proper divisors (58895).

8049709 is a wasteful number, since it uses less digits than its factorization.

8049709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58894.

The product of its (nonzero) digits is 18144, while the sum is 37.

The square root of 8049709 is about 2837.2009093471. The cubic root of 8049709 is about 200.4133866354.

The spelling of 8049709 in words is "eight million, forty-nine thousand, seven hundred nine".