324487649 has 8 divisors (see below), whose sum is σ = 328096872. Its totient is φ = 320886400.

The previous prime is 324487607. The next prime is 324487673. The reversal of 324487649 is 946784423.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 118048225 + 206439424 = 10865^2 + 14368^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 324487649 - 2²⁰ = 323439073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (324487349) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119147 + ... + 121839.

It is an arithmetic number, because the mean of its divisors is an integer number (41012109).

Almost surely, 2^324487649 is an apocalyptic number.

It is an amenable number.

324487649 is a deficient number, since it is larger than the sum of its proper divisors (3609223).

324487649 is a wasteful number, since it uses less digits than its factorization.

324487649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3987.

The product of its digits is 1161216, while the sum is 47.

The square root of 324487649 is about 18013.5407124752. The cubic root of 324487649 is about 687.1729522809.

The spelling of 324487649 in words is "three hundred twenty-four million, four hundred eighty-seven thousand, six hundred forty-nine".