641560084 has 12 divisors (see below), whose sum is σ = 1224796608. Its totient is φ = 291618200.

The previous prime is 641560081. The next prime is 641560109. The reversal of 641560084 is 480065146.

641560084 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (641560081) 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, 7290412 + ... + 7290499.

It is an arithmetic number, because the mean of its divisors is an integer number (102066384).

Almost surely, 2^641560084 is an apocalyptic number.

It is an amenable number.

641560084 is a deficient number, since it is larger than the sum of its proper divisors (583236524).

641560084 is a wasteful number, since it uses less digits than its factorization.

641560084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14580926 (or 14580924 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 641560084 is about 25329.0363811970. The cubic root of 641560084 is about 862.4735367922.

The spelling of 641560084 in words is "six hundred forty-one million, five hundred sixty thousand, eighty-four".