652218943 has 8 divisors (see below), whose sum is σ = 670658960. Its totient is φ = 633821760.

The previous prime is 652218911. The next prime is 652218949. The reversal of 652218943 is 349812256.

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 652218943 - 2⁵ = 652218911 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 652218896 and 652218905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (652218949) 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, 21523 + ... + 42043.

It is an arithmetic number, because the mean of its divisors is an integer number (83832370).

Almost surely, 2^652218943 is an apocalyptic number.

652218943 is a deficient number, since it is larger than the sum of its proper divisors (18440017).

652218943 is a wasteful number, since it uses less digits than its factorization.

652218943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21417.

The product of its digits is 103680, while the sum is 40.

The square root of 652218943 is about 25538.5775445697. The cubic root of 652218943 is about 867.2236961628.

The spelling of 652218943 in words is "six hundred fifty-two million, two hundred eighteen thousand, nine hundred forty-three".