641084 has 12 divisors (see below), whose sum is σ = 1127784. Its totient is φ = 318864.

The previous prime is 641083. The next prime is 641089. The reversal of 641084 is 480146.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (641083) 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, 899 + ... + 1445.

It is an arithmetic number, because the mean of its divisors is an integer number (93982).

2⁶⁴¹⁰⁸⁴ is an apocalyptic number.

It is an amenable number.

641084 is a deficient number, since it is larger than the sum of its proper divisors (486700).

641084 is a wasteful number, since it uses less digits than its factorization.

641084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 844 (or 842 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 641084 is about 800.6772133638. The cubic root of 641084 is about 86.2260144744.

The spelling of 641084 in words is "six hundred forty-one thousand, eighty-four".