27920163 has 8 divisors (see below), whose sum is σ = 38233168. Its totient is φ = 18110304.

The previous prime is 27920147. The next prime is 27920227. The reversal of 27920163 is 36102972.

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

It is not a de Polignac number, because 27920163 - 2⁴ = 27920147 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 27920163.

It is not an unprimeable number, because it can be changed into a prime (27920143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125656 + ... + 125877.

It is an arithmetic number, because the mean of its divisors is an integer number (4779146).

Almost surely, 2^27920163 is an apocalyptic number.

27920163 is a deficient number, since it is larger than the sum of its proper divisors (10313005).

27920163 is a wasteful number, since it uses less digits than its factorization.

27920163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251573.

The product of its (nonzero) digits is 4536, while the sum is 30.

The square root of 27920163 is about 5283.9533495291. The cubic root of 27920163 is about 303.3700127390.

The spelling of 27920163 in words is "twenty-seven million, nine hundred twenty thousand, one hundred sixty-three".