652217957 has 8 divisors (see below), whose sum is σ = 655527360. Its totient is φ = 648917280.

The previous prime is 652217911. The next prime is 652217983. The reversal of 652217957 is 759712256.

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 652217957 - 2¹⁸ = 651955813 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 (652217987) 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, 186608 + ... + 190070.

It is an arithmetic number, because the mean of its divisors is an integer number (81940920).

Almost surely, 2^652217957 is an apocalyptic number.

It is an amenable number.

652217957 is a deficient number, since it is larger than the sum of its proper divisors (3309403).

652217957 is a wasteful number, since it uses less digits than its factorization.

652217957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4363.

The product of its digits is 264600, while the sum is 44.

The square root of 652217957 is about 25538.5582404332. The cubic root of 652217957 is about 867.2232591506.

The spelling of 652217957 in words is "six hundred fifty-two million, two hundred seventeen thousand, nine hundred fifty-seven".