20303961 has 8 divisors (see below), whose sum is σ = 27111360. Its totient is φ = 13516272.

The previous prime is 20303947. The next prime is 20303981. The reversal of 20303961 is 16930302.

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

It is not a de Polignac number, because 20303961 - 2⁹ = 20303449 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20303981) 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, 2326 + ... + 6783.

It is an arithmetic number, because the mean of its divisors is an integer number (3388920).

Almost surely, 2^20303961 is an apocalyptic number.

It is an amenable number.

20303961 is a deficient number, since it is larger than the sum of its proper divisors (6807399).

20303961 is an equidigital number, since it uses as much as digits as its factorization.

20303961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9855.

The product of its (nonzero) digits is 972, while the sum is 24.

The square root of 20303961 is about 4505.9916777553. The cubic root of 20303961 is about 272.8099819549.

The spelling of 20303961 in words is "twenty million, three hundred three thousand, nine hundred sixty-one".