652889680 has 20 divisors (see below), whose sum is σ = 1517968692. Its totient is φ = 261155840.

The previous prime is 652889651. The next prime is 652889687. The reversal of 652889680 is 86988256.

It can be written as a sum of positive squares in 2 ways, for example, as 97061904 + 555827776 = 9852^2 + 23576^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (652889687) 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, 4080481 + ... + 4080640.

Almost surely, 2^652889680 is an apocalyptic number.

It is an amenable number.

652889680 is an abundant number, since it is smaller than the sum of its proper divisors (865079012).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

652889680 is a wasteful number, since it uses less digits than its factorization.

652889680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8161134 (or 8161128 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 52.

The square root of 652889680 is about 25551.7060095799. The cubic root of 652889680 is about 867.5208763977.

The spelling of 652889680 in words is "six hundred fifty-two million, eight hundred eighty-nine thousand, six hundred eighty".