303961 has 8 divisors (see below), whose sum is σ = 350784. Its totient is φ = 258000.

The previous prime is 303959. The next prime is 303983. The reversal of 303961 is 169303.

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 303961 - 2¹ = 303959 is a prime.

303961 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (303931) 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, 1086 + ... + 1336.

It is an arithmetic number, because the mean of its divisors is an integer number (43848).

2³⁰³⁹⁶¹ is an apocalyptic number.

It is an amenable number.

303961 is a deficient number, since it is larger than the sum of its proper divisors (46823).

303961 is a wasteful number, since it uses less digits than its factorization.

303961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431.

The product of its (nonzero) digits is 486, while the sum is 22.

The square root of 303961 is about 551.3265819820. The cubic root of 303961 is about 67.2366326393.

The spelling of 303961 in words is "three hundred three thousand, nine hundred sixty-one".