20846163 has 16 divisors (see below), whose sum is σ = 30665376. Its totient is φ = 12514560.

The previous prime is 20846159. The next prime is 20846171. The reversal of 20846163 is 36164802.

It is not a de Polignac number, because 20846163 - 2² = 20846159 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20846163.

It is not an unprimeable number, because it can be changed into a prime (20846153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4920 + ... + 8117.

It is an arithmetic number, because the mean of its divisors is an integer number (1916586).

Almost surely, 2^20846163 is an apocalyptic number.

20846163 is a deficient number, since it is larger than the sum of its proper divisors (9819213).

20846163 is a wasteful number, since it uses less digits than its factorization.

20846163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13094.

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 20846163 is about 4565.7598491379. The cubic root of 20846163 is about 275.2170759852.

The spelling of 20846163 in words is "twenty million, eight hundred forty-six thousand, one hundred sixty-three".