641366339 has 8 divisors (see below), whose sum is σ = 673263360. Its totient is φ = 609803656.

The previous prime is 641366329. The next prime is 641366351. The reversal of 641366339 is 933663146.

641366339 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 641366339 - 2⁸ = 641366083 is a prime.

It is a super-2 number, since 2×641366339² = 822701561604525842, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 641366296 and 641366305.

It is not an unprimeable number, because it can be changed into a prime (641366329) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79649 + ... + 87330.

It is an arithmetic number, because the mean of its divisors is an integer number (84157920).

Almost surely, 2^641366339 is an apocalyptic number.

641366339 is a deficient number, since it is larger than the sum of its proper divisors (31897021).

641366339 is a wasteful number, since it uses less digits than its factorization.

641366339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167169.

The product of its digits is 209952, while the sum is 41.

The square root of 641366339 is about 25325.2115292252. The cubic root of 641366339 is about 862.3867084690.

The spelling of 641366339 in words is "six hundred forty-one million, three hundred sixty-six thousand, three hundred thirty-nine".