641792 has 36 divisors (see below), whose sum is σ = 1349040. Its totient is φ = 304128.

The previous prime is 641791. The next prime is 641803. The reversal of 641792 is 297146.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 641792.

It is not an unprimeable number, because it can be changed into a prime (641791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5834 + ... + 5942.

2⁶⁴¹⁷⁹² 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 641792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (674520).

641792 is an abundant number, since it is smaller than the sum of its proper divisors (707248).

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

641792 is a wasteful number, since it uses less digits than its factorization.

641792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148 (or 134 counting only the distinct ones).

The product of its digits is 3024, while the sum is 29.

The square root of 641792 is about 801.1192170957. The cubic root of 641792 is about 86.2577448762.

The spelling of 641792 in words is "six hundred forty-one thousand, seven hundred ninety-two".