304961 has 2 divisors, whose sum is σ = 304962. Its totient is φ = 304960.

The previous prime is 304949. The next prime is 304979. The reversal of 304961 is 169403.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 295936 + 9025 = 544^2 + 95^2 .

It is a cyclic number.

It is not a de Polignac number, because 304961 - 2⁶ = 304897 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 304961.

It is not a weakly prime, because it can be changed into another prime (304901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 152480 + 152481.

It is an arithmetic number, because the mean of its divisors is an integer number (152481).

2³⁰⁴⁹⁶¹ is an apocalyptic number.

It is an amenable number.

304961 is a deficient number, since it is larger than the sum of its proper divisors (1).

304961 is an equidigital number, since it uses as much as digits as its factorization.

304961 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 304961 is about 552.2327407896. The cubic root of 304961 is about 67.3102857651.

The spelling of 304961 in words is "three hundred four thousand, nine hundred sixty-one".