641308 has 12 divisors (see below), whose sum is σ = 1188432. Its totient is φ = 301760.

The previous prime is 641299. The next prime is 641317. The reversal of 641308 is 803146.

It is an interprime number because it is at equal distance from previous prime (641299) and next prime (641317).

It is a super-2 number, since 2×641308² = 822551901728, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

641308 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4648 + ... + 4783.

It is an arithmetic number, because the mean of its divisors is an integer number (99036).

2⁶⁴¹³⁰⁸ is an apocalyptic number.

641308 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

641308 is a deficient number, since it is larger than the sum of its proper divisors (547124).

641308 is a wasteful number, since it uses less digits than its factorization.

641308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9452 (or 9450 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 641308 is about 800.8170827349. The cubic root of 641308 is about 86.2360559969.

It can be divided in two parts, 641 and 308, that added together give a palindrome (949).

The spelling of 641308 in words is "six hundred forty-one thousand, three hundred eight".