652846021 has 4 divisors (see below), whose sum is σ = 653045344. Its totient is φ = 652646700.

The previous prime is 652846009. The next prime is 652846037. The reversal of 652846021 is 120648256.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 652846021 - 2⁵ = 652845989 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 (652846001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94665 + ... + 101326.

It is an arithmetic number, because the mean of its divisors is an integer number (163261336).

Almost surely, 2^652846021 is an apocalyptic number.

It is an amenable number.

652846021 is a deficient number, since it is larger than the sum of its proper divisors (199323).

652846021 is a wasteful number, since it uses less digits than its factorization.

652846021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199322.

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 652846021 is about 25550.8516687800. The cubic root of 652846021 is about 867.5015388080.

The spelling of 652846021 in words is "six hundred fifty-two million, eight hundred forty-six thousand, twenty-one".