675823521 has 8 divisors (see below), whose sum is σ = 948524320. Its totient is φ = 426835872.

The previous prime is 675823501. The next prime is 675823549. The reversal of 675823521 is 125328576.

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

It is not a de Polignac number, because 675823521 - 2⁹ = 675823009 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 675823521.

It is not an unprimeable number, because it can be changed into a prime (675823501) 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 7 ways as a sum of consecutive naturals, for example, 5928220 + ... + 5928333.

It is an arithmetic number, because the mean of its divisors is an integer number (118565540).

Almost surely, 2^675823521 is an apocalyptic number.

It is an amenable number.

675823521 is a deficient number, since it is larger than the sum of its proper divisors (272700799).

675823521 is a wasteful number, since it uses less digits than its factorization.

675823521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11856575.

The product of its digits is 100800, while the sum is 39.

The square root of 675823521 is about 25996.6059515468. The cubic root of 675823521 is about 877.5619157455.

The spelling of 675823521 in words is "six hundred seventy-five million, eight hundred twenty-three thousand, five hundred twenty-one".