28349163 has 16 divisors (see below), whose sum is σ = 43024800. Its totient is φ = 18437760.

The previous prime is 28349143. The next prime is 28349171. The reversal of 28349163 is 36194382.

It is not a de Polignac number, because 28349163 - 2⁶ = 28349099 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28349143) 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, 11698 + ... + 13911.

It is an arithmetic number, because the mean of its divisors is an integer number (2689050).

Almost surely, 2^28349163 is an apocalyptic number.

28349163 is a deficient number, since it is larger than the sum of its proper divisors (14675637).

28349163 is a wasteful number, since it uses less digits than its factorization.

28349163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25659 (or 25653 counting only the distinct ones).

The product of its digits is 31104, while the sum is 36.

The square root of 28349163 is about 5324.3932048638. The cubic root of 28349163 is about 304.9159062257.

The spelling of 28349163 in words is "twenty-eight million, three hundred forty-nine thousand, one hundred sixty-three".