28967163 has 4 divisors (see below), whose sum is σ = 38622888. Its totient is φ = 19311440.

The previous prime is 28967137. The next prime is 28967173. The reversal of 28967163 is 36176982.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 28967163 - 2¹⁶ = 28901627 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28967173) 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 3 ways as a sum of consecutive naturals, for example, 4827858 + ... + 4827863.

It is an arithmetic number, because the mean of its divisors is an integer number (9655722).

Almost surely, 2^28967163 is an apocalyptic number.

28967163 is a deficient number, since it is larger than the sum of its proper divisors (9655725).

28967163 is an equidigital number, since it uses as much as digits as its factorization.

28967163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9655724.

The product of its digits is 108864, while the sum is 42.

The square root of 28967163 is about 5382.1151046777. The cubic root of 28967163 is about 307.1156782358.

The spelling of 28967163 in words is "twenty-eight million, nine hundred sixty-seven thousand, one hundred sixty-three".