28163097 has 12 divisors (see below), whose sum is σ = 41992704. Its totient is φ = 18169560.

The previous prime is 28163081. The next prime is 28163099. The reversal of 28163097 is 79036182.

It is not a de Polignac number, because 28163097 - 2⁴ = 28163081 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28163099) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 50193 + ... + 50750.

It is an arithmetic number, because the mean of its divisors is an integer number (3499392).

Almost surely, 2^28163097 is an apocalyptic number.

It is an amenable number.

28163097 is a deficient number, since it is larger than the sum of its proper divisors (13829607).

28163097 is a wasteful number, since it uses less digits than its factorization.

28163097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100980 (or 100977 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 28163097 is about 5306.8914629941. The cubic root of 28163097 is about 304.2473496185.

The spelling of 28163097 in words is "twenty-eight million, one hundred sixty-three thousand, ninety-seven".