659398249 has 8 divisors (see below), whose sum is σ = 710246240. Its totient is φ = 610164576.

The previous prime is 659398213. The next prime is 659398291. The reversal of 659398249 is 942893956.

It is a happy number.

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 659398249 - 2¹¹ = 659396201 is a prime.

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 659398249.

It is not an unprimeable number, because it can be changed into a prime (659398049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 402732 + ... + 404365.

It is an arithmetic number, because the mean of its divisors is an integer number (88780780).

Almost surely, 2^659398249 is an apocalyptic number.

It is an amenable number.

659398249 is a deficient number, since it is larger than the sum of its proper divisors (50847991).

659398249 is a wasteful number, since it uses less digits than its factorization.

659398249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 807159.

The product of its digits is 4199040, while the sum is 55.

The square root of 659398249 is about 25678.7509236723. The cubic root of 659398249 is about 870.3940827070.

The spelling of 659398249 in words is "six hundred fifty-nine million, three hundred ninety-eight thousand, two hundred forty-nine".