28645097 has 8 divisors (see below), whose sum is σ = 32190144. Its totient is φ = 25291728.

The previous prime is 28645093. The next prime is 28645129. The reversal of 28645097 is 79054682.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28645097 - 2² = 28645093 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28645093) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47603 + ... + 48200.

It is an arithmetic number, because the mean of its divisors is an integer number (4023768).

Almost surely, 2^28645097 is an apocalyptic number.

It is an amenable number.

28645097 is a deficient number, since it is larger than the sum of its proper divisors (3545047).

28645097 is a wasteful number, since it uses less digits than its factorization.

28645097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95839.

The product of its (nonzero) digits is 120960, while the sum is 41.

The square root of 28645097 is about 5352.1114525017. Note that the first 3 decimals coincide. The cubic root of 28645097 is about 305.9732308877.

The spelling of 28645097 in words is "twenty-eight million, six hundred forty-five thousand, ninety-seven".