306841 has 4 divisors (see below), whose sum is σ = 315172. Its totient is φ = 298512.

The previous prime is 306829. The next prime is 306847. The reversal of 306841 is 148603.

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

It can be written as a sum of positive squares in 2 ways, for example, as 177241 + 129600 = 421^2 + 360^2 .

It is a cyclic number.

It is not a de Polignac number, because 306841 - 2⁵ = 306809 is a prime.

It is a Duffinian number.

306841 is a lucky number.

It is a nialpdrome in base 13.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 306841.

It is not an unprimeable number, because it can be changed into a prime (306847) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4110 + ... + 4183.

It is an arithmetic number, because the mean of its divisors is an integer number (78793).

2³⁰⁶⁸⁴¹ is an apocalyptic number.

It is an amenable number.

306841 is a deficient number, since it is larger than the sum of its proper divisors (8331).

306841 is an equidigital number, since it uses as much as digits as its factorization.

306841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8330.

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

The square root of 306841 is about 553.9323063335. The cubic root of 306841 is about 67.4483189226.

The spelling of 306841 in words is "three hundred six thousand, eight hundred forty-one".