641871062 has 16 divisors (see below), whose sum is σ = 1125940992. Its totient is φ = 268689960.

The previous prime is 641871047. The next prime is 641871071. The reversal of 641871062 is 260178146.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 532514 + ... + 533717.

It is an arithmetic number, because the mean of its divisors is an integer number (70371312).

Almost surely, 2^641871062 is an apocalyptic number.

641871062 is a deficient number, since it is larger than the sum of its proper divisors (484069930).

641871062 is a wasteful number, since it uses less digits than its factorization.

641871062 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1066283.

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 641871062 is about 25335.1744023995. The cubic root of 641871062 is about 862.6128674531.

The spelling of 641871062 in words is "six hundred forty-one million, eight hundred seventy-one thousand, sixty-two".