641190934 has 4 divisors (see below), whose sum is σ = 961786404. Its totient is φ = 320595466.

The previous prime is 641190917. The next prime is 641190997. The reversal of 641190934 is 439091146.

641190934 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×641190934² = 822251627687584712, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 641190893 and 641190902.

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, 160297732 + ... + 160297735.

It is an arithmetic number, because the mean of its divisors is an integer number (240446601).

Almost surely, 2^641190934 is an apocalyptic number.

641190934 is a deficient number, since it is larger than the sum of its proper divisors (320595470).

641190934 is a wasteful number, since it uses less digits than its factorization.

641190934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320595469.

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 641190934 is about 25321.7482413833. The cubic root of 641190934 is about 862.3080842759.

The spelling of 641190934 in words is "six hundred forty-one million, one hundred ninety thousand, nine hundred thirty-four".