28435163 has 4 divisors (see below), whose sum is σ = 28496520. Its totient is φ = 28373808.

The previous prime is 28435133. The next prime is 28435171. The reversal of 28435163 is 36153482.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36153482 = 2 ⋅18076741.

It is a cyclic number.

It is not a de Polignac number, because 28435163 - 2¹⁰ = 28434139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28435103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29978 + ... + 30911.

It is an arithmetic number, because the mean of its divisors is an integer number (7124130).

Almost surely, 2^28435163 is an apocalyptic number.

28435163 is a deficient number, since it is larger than the sum of its proper divisors (61357).

28435163 is an equidigital number, since it uses as much as digits as its factorization.

28435163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61356.

The product of its digits is 17280, while the sum is 32.

The square root of 28435163 is about 5332.4631269236. The cubic root of 28435163 is about 305.2239258555.

The spelling of 28435163 in words is "twenty-eight million, four hundred thirty-five thousand, one hundred sixty-three".