28578126 has 8 divisors (see below), whose sum is σ = 57156264. Its totient is φ = 9526040.

The previous prime is 28578103. The next prime is 28578127. The reversal of 28578126 is 62187582.

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

28578126 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28578127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2381505 + ... + 2381516.

It is an arithmetic number, because the mean of its divisors is an integer number (7144533).

Almost surely, 2^28578126 is an apocalyptic number.

28578126 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

28578126 is a wasteful number, since it uses less digits than its factorization.

28578126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4763026.

The product of its digits is 53760, while the sum is 39.

The square root of 28578126 is about 5345.8512886162. The cubic root of 28578126 is about 305.7345940824.

The spelling of 28578126 in words is "twenty-eight million, five hundred seventy-eight thousand, one hundred twenty-six".