28893726 has 32 divisors (see below), whose sum is σ = 64385280. Its totient is φ = 9604728.

The previous prime is 28893719. The next prime is 28893743. The reversal of 28893726 is 62739882.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

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, 34525 + ... + 35351.

It is an arithmetic number, because the mean of its divisors is an integer number (2012040).

Almost surely, 2^28893726 is an apocalyptic number.

28893726 is an abundant number, since it is smaller than the sum of its proper divisors (35491554).

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

28893726 is a wasteful number, since it uses less digits than its factorization.

28893726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1485 (or 1479 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 28893726 is about 5375.2884573760. The cubic root of 28893726 is about 306.8559273338.

The spelling of 28893726 in words is "twenty-eight million, eight hundred ninety-three thousand, seven hundred twenty-six".