6730249 has 4 divisors (see below), whose sum is σ = 7126164. Its totient is φ = 6334336.

The previous prime is 6730211. The next prime is 6730253. The reversal of 6730249 is 9420376.

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 6250000 + 480249 = 2500^2 + 693^2 .

It is not a de Polignac number, because 6730249 - 2⁷ = 6730121 is a prime.

It is a d-powerful number, because it can be written as 6⁸ + 7⁷ + 3² + 0 + 2¹⁵ + 4¹¹ + 9 .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6730249.

It is not an unprimeable number, because it can be changed into a prime (6730279) 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, 197932 + ... + 197965.

It is an arithmetic number, because the mean of its divisors is an integer number (1781541).

Almost surely, 2^6730249 is an apocalyptic number.

It is an amenable number.

6730249 is a deficient number, since it is larger than the sum of its proper divisors (395915).

6730249 is a wasteful number, since it uses less digits than its factorization.

6730249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395914.

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 6730249 is about 2594.2723449939. The cubic root of 6730249 is about 188.8036462866.

The spelling of 6730249 in words is "six million, seven hundred thirty thousand, two hundred forty-nine".