28608897 has 8 divisors (see below), whose sum is σ = 38179360. Its totient is φ = 19055520.

The previous prime is 28608883. The next prime is 28608917. The reversal of 28608897 is 79880682.

It is a happy number.

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

It is not a de Polignac number, because 28608897 - 2⁸ = 28608641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28208897) 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, 354 + ... + 7572.

It is an arithmetic number, because the mean of its divisors is an integer number (4772420).

Almost surely, 2^28608897 is an apocalyptic number.

It is an amenable number.

28608897 is a deficient number, since it is larger than the sum of its proper divisors (9570463).

28608897 is a wasteful number, since it uses less digits than its factorization.

28608897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8543.

The product of its (nonzero) digits is 387072, while the sum is 48.

The square root of 28608897 is about 5348.7285405038. The cubic root of 28608897 is about 305.8442861906.

The spelling of 28608897 in words is "twenty-eight million, six hundred eight thousand, eight hundred ninety-seven".