28679250 has 32 divisors (see below), whose sum is σ = 71585280. Its totient is φ = 7647600.

The previous prime is 28679249. The next prime is 28679281. The reversal of 28679250 is 5297682.

It is a happy number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 28679199 and 28679208.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18370 + ... + 19869.

It is an arithmetic number, because the mean of its divisors is an integer number (2237040).

Almost surely, 2^28679250 is an apocalyptic number.

28679250 is an abundant number, since it is smaller than the sum of its proper divisors (42906030).

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

28679250 is a wasteful number, since it uses less digits than its factorization.

28679250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38259 (or 38249 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 28679250 is about 5355.3011119824. The cubic root of 28679250 is about 306.0947845975.

The spelling of 28679250 in words is "twenty-eight million, six hundred seventy-nine thousand, two hundred fifty".