641883896 has 8 divisors (see below), whose sum is σ = 1203532320. Its totient is φ = 320941944.

The previous prime is 641883857. The next prime is 641883911. The reversal of 641883896 is 698388146.

641883896 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40117736 + ... + 40117751.

It is an arithmetic number, because the mean of its divisors is an integer number (150441540).

Almost surely, 2^641883896 is an apocalyptic number.

It is an amenable number.

641883896 is a deficient number, since it is larger than the sum of its proper divisors (561648424).

641883896 is a wasteful number, since it uses less digits than its factorization.

641883896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80235493 (or 80235489 counting only the distinct ones).

The product of its digits is 1990656, while the sum is 53.

The square root of 641883896 is about 25335.4276853579. The cubic root of 641883896 is about 862.6186166346.

The spelling of 641883896 in words is "six hundred forty-one million, eight hundred eighty-three thousand, eight hundred ninety-six".