641592 has 96 divisors (see below), whose sum is σ = 2121600. Its totient is φ = 171072.

The previous prime is 641581. The next prime is 641623. The reversal of 641592 is 295146.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 641592.

It is an unprimeable number.

641592 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9543 + ... + 9609.

It is an arithmetic number, because the mean of its divisors is an integer number (22100).

2⁶⁴¹⁵⁹² is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 641592, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1060800).

641592 is an abundant number, since it is smaller than the sum of its proper divisors (1480008).

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

641592 is a wasteful number, since it uses less digits than its factorization.

641592 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105 (or 98 counting only the distinct ones).

The product of its digits is 2160, while the sum is 27.

The square root of 641592 is about 800.9943820028. The cubic root of 641592 is about 86.2487838518.

The spelling of 641592 in words is "six hundred forty-one thousand, five hundred ninety-two".