641676941 has 8 divisors (see below), whose sum is σ = 649106880. Its totient is φ = 634277952.

The previous prime is 641676923. The next prime is 641676961. The reversal of 641676941 is 149676146.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-641676941 is a prime.

It is a super-2 number, since 2×641676941² = 823498593222234962, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 641676892 and 641676901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (641676961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35336 + ... + 50318.

It is an arithmetic number, because the mean of its divisors is an integer number (81138360).

Almost surely, 2^641676941 is an apocalyptic number.

It is an amenable number.

641676941 is a deficient number, since it is larger than the sum of its proper divisors (7429939).

641676941 is a wasteful number, since it uses less digits than its factorization.

641676941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15475.

The product of its digits is 217728, while the sum is 44.

The square root of 641676941 is about 25331.3430555902. The cubic root of 641676941 is about 862.5258987112.

The spelling of 641676941 in words is "six hundred forty-one million, six hundred seventy-six thousand, nine hundred forty-one".