304661 has 8 divisors (see below), whose sum is σ = 353664. Its totient is φ = 257040.

The previous prime is 304651. The next prime is 304663. The reversal of 304661 is 166403.

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

It is not a de Polignac number, because 304661 - 2⁶ = 304597 is a prime.

It is a Duffinian number.

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 304661.

It is not an unprimeable number, because it can be changed into a prime (304663) 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, 191 + ... + 803.

It is an arithmetic number, because the mean of its divisors is an integer number (44208).

2³⁰⁴⁶⁶¹ is an apocalyptic number.

It is an amenable number.

304661 is a deficient number, since it is larger than the sum of its proper divisors (49003).

304661 is an equidigital number, since it uses as much as digits as its factorization.

304661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 691.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 304661 is about 551.9610493504. The cubic root of 304661 is about 67.2882067551.

The spelling of 304661 in words is "three hundred four thousand, six hundred sixty-one".