641116 has 18 divisors (see below), whose sum is σ = 1305528. Its totient is φ = 274680.

The previous prime is 641101. The next prime is 641129. The reversal of 641116 is 611146.

It is a happy number.

It is a super-2 number, since 2×641116² = 822059450912, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 641093 and 641102.

It is a congruent number.

It is an unprimeable number.

641116 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 5 ways as a sum of consecutive naturals, for example, 1440 + ... + 1831.

2⁶⁴¹¹¹⁶ is an apocalyptic number.

It is an amenable number.

641116 is an abundant number, since it is smaller than the sum of its proper divisors (664412).

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

641116 is a wasteful number, since it uses less digits than its factorization.

641116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3289 (or 3280 counting only the distinct ones).

The product of its digits is 144, while the sum is 19.

The square root of 641116 is about 800.6971961984. The cubic root of 641116 is about 86.2274491208.

It can be divided in two parts, 641 and 116, that added together give a palindrome (757).

The spelling of 641116 in words is "six hundred forty-one thousand, one hundred sixteen".