28658106 has 12 divisors (see below), whose sum is σ = 62092602. Its totient is φ = 9552696.

The previous prime is 28658093. The next prime is 28658117. The reversal of 28658106 is 60185682.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 18792225 + 9865881 = 4335^2 + 3141^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 796041 + ... + 796076.

Almost surely, 2^28658106 is an apocalyptic number.

28658106 is an abundant number, since it is smaller than the sum of its proper divisors (33434496).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28658106 is a wasteful number, since it uses less digits than its factorization.

28658106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1592125 (or 1592122 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 28658106 is about 5353.3266293026. The cubic root of 28658106 is about 306.0195425171.

The spelling of 28658106 in words is "twenty-eight million, six hundred fifty-eight thousand, one hundred six".