641983674 has 32 divisors (see below), whose sum is σ = 1299202560. Its totient is φ = 211464000.

The previous prime is 641983673. The next prime is 641983697. The reversal of 641983674 is 476389146.

641983674 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (641983673) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 600012 + ... + 601080.

It is an arithmetic number, because the mean of its divisors is an integer number (40600080).

Almost surely, 2^641983674 is an apocalyptic number.

641983674 is an abundant number, since it is smaller than the sum of its proper divisors (657218886).

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

641983674 is a wasteful number, since it uses less digits than its factorization.

641983674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2166.

The product of its digits is 870912, while the sum is 48.

The square root of 641983674 is about 25337.3967486796. The cubic root of 641983674 is about 862.6633110627.

The spelling of 641983674 in words is "six hundred forty-one million, nine hundred eighty-three thousand, six hundred seventy-four".