652223309 has 8 divisors (see below), whose sum is σ = 709254648. Its totient is φ = 597265920.

The previous prime is 652223303. The next prime is 652223323. The reversal of 652223309 is 903322256.

It can be written as a sum of positive squares in 4 ways, for example, as 461175625 + 191047684 = 21475^2 + 13822^2 .

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 652223309 - 2⁴ = 652223293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (652223303) 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, 517832 + ... + 519089.

It is an arithmetic number, because the mean of its divisors is an integer number (88656831).

Almost surely, 2^652223309 is an apocalyptic number.

It is an amenable number.

652223309 is a deficient number, since it is larger than the sum of its proper divisors (57031339).

652223309 is a wasteful number, since it uses less digits than its factorization.

652223309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1036975.

The product of its (nonzero) digits is 19440, while the sum is 32.

The square root of 652223309 is about 25538.6630229540. The cubic root of 652223309 is about 867.2256312442.

The spelling of 652223309 in words is "six hundred fifty-two million, two hundred twenty-three thousand, three hundred nine".