28932163 has 16 divisors (see below), whose sum is σ = 32364640. Its totient is φ = 25691904.

The previous prime is 28932161. The next prime is 28932191. The reversal of 28932163 is 36123982.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 28932163 - 2¹ = 28932161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28932161) 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, 40453 + ... + 41161.

It is an arithmetic number, because the mean of its divisors is an integer number (2022790).

Almost surely, 2^28932163 is an apocalyptic number.

28932163 is a deficient number, since it is larger than the sum of its proper divisors (3432477).

28932163 is a wasteful number, since it uses less digits than its factorization.

28932163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 838.

The product of its digits is 15552, while the sum is 34.

The square root of 28932163 is about 5378.8626121142. The cubic root of 28932163 is about 306.9919360422.

The spelling of 28932163 in words is "twenty-eight million, nine hundred thirty-two thousand, one hundred sixty-three".