6709249 has 4 divisors (see below), whose sum is σ = 6714436. Its totient is φ = 6704064.

The previous prime is 6709201. The next prime is 6709253. The reversal of 6709249 is 9429076.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 6036849 + 672400 = 2457^2 + 820^2 .

It is a cyclic number.

It is not a de Polignac number, because 6709249 - 2¹¹ = 6707201 is a prime.

It is a Duffinian number.

6709249 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (6709289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1117 + ... + 3829.

It is an arithmetic number, because the mean of its divisors is an integer number (1678609).

It is a Proth number, since it is equal to 819 ⋅ 2¹³ + 1 and 819 < 2¹³.

Almost surely, 2^6709249 is an apocalyptic number.

It is an amenable number.

6709249 is a deficient number, since it is larger than the sum of its proper divisors (5187).

6709249 is a wasteful number, since it uses less digits than its factorization.

6709249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5186.

The product of its (nonzero) digits is 27216, while the sum is 37.

The square root of 6709249 is about 2590.2218051742. The cubic root of 6709249 is about 188.6070707203.

The spelling of 6709249 in words is "six million, seven hundred nine thousand, two hundred forty-nine".