641086 has 8 divisors (see below), whose sum is σ = 975024. Its totient is φ = 316080.

The previous prime is 641083. The next prime is 641089. The reversal of 641086 is 680146.

641086 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (641083) and next prime (641089).

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

It is a self number, because there is not a number n which added to its sum of digits gives 641086.

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, 2050 + ... + 2341.

It is an arithmetic number, because the mean of its divisors is an integer number (121878).

2⁶⁴¹⁰⁸⁶ is an apocalyptic number.

641086 is a deficient number, since it is larger than the sum of its proper divisors (333938).

641086 is a wasteful number, since it uses less digits than its factorization.

641086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4466.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 641086 is about 800.6784623056. The cubic root of 641086 is about 86.2261041412.

Subtracting 641086 from its reverse (680146), we obtain a triangular number (39060 = T₂₇₉).

The spelling of 641086 in words is "six hundred forty-one thousand, eighty-six".