641794 has 8 divisors (see below), whose sum is σ = 967680. Its totient is φ = 319236.

The previous prime is 641791. The next prime is 641803. The reversal of 641794 is 497146.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (641791) 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, 274 + ... + 1165.

It is an arithmetic number, because the mean of its divisors is an integer number (120960).

2⁶⁴¹⁷⁹⁴ is an apocalyptic number.

641794 is a deficient number, since it is larger than the sum of its proper divisors (325886).

641794 is a wasteful number, since it uses less digits than its factorization.

641794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1664.

The product of its digits is 6048, while the sum is 31.

The square root of 641794 is about 801.1204653484. The cubic root of 641794 is about 86.2578344770.

The spelling of 641794 in words is "six hundred forty-one thousand, seven hundred ninety-four".