20968267 has 8 divisors (see below), whose sum is σ = 22136400. Its totient is φ = 19806624.

The previous prime is 20968237. The next prime is 20968271. The reversal of 20968267 is 76286902.

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 20968267 - 2⁷ = 20968139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20968237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5973 + ... + 8809.

It is an arithmetic number, because the mean of its divisors is an integer number (2767050).

Almost surely, 2^20968267 is an apocalyptic number.

20968267 is a deficient number, since it is larger than the sum of its proper divisors (1168133).

20968267 is a wasteful number, since it uses less digits than its factorization.

20968267 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3245.

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 20968267 is about 4579.1120318245. The cubic root of 20968267 is about 275.7533810092.

The spelling of 20968267 in words is "twenty million, nine hundred sixty-eight thousand, two hundred sixty-seven".