641652 has 24 divisors (see below), whose sum is σ = 1633632. Its totient is φ = 194400.

The previous prime is 641639. The next prime is 641681. The reversal of 641652 is 256146.

641652 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2299 + ... + 2562.

It is an arithmetic number, because the mean of its divisors is an integer number (68068).

2⁶⁴¹⁶⁵² is an apocalyptic number.

It is an amenable number.

641652 is an abundant number, since it is smaller than the sum of its proper divisors (991980).

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

641652 is a wasteful number, since it uses less digits than its factorization.

641652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4879 (or 4877 counting only the distinct ones).

The product of its digits is 1440, while the sum is 24.

The square root of 641652 is about 801.0318345734. The cubic root of 641652 is about 86.2514723546.

Adding to 641652 its reverse (256146), we get a palindrome (897798).

The spelling of 641652 in words is "six hundred forty-one thousand, six hundred fifty-two".