28793727 has 6 divisors (see below), whose sum is σ = 41590952. Its totient is φ = 19195812.

The previous prime is 28793651. The next prime is 28793729. The reversal of 28793727 is 72739782.

It is not a de Polignac number, because 28793727 - 2¹⁶ = 28728191 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28793729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1599643 + ... + 1599660.

Almost surely, 2^28793727 is an apocalyptic number.

28793727 is a deficient number, since it is larger than the sum of its proper divisors (12797225).

28793727 is a wasteful number, since it uses less digits than its factorization.

28793727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3199309 (or 3199306 counting only the distinct ones).

The product of its digits is 296352, while the sum is 45.

The square root of 28793727 is about 5365.9786619032. The cubic root of 28793727 is about 306.5015164383.

The spelling of 28793727 in words is "twenty-eight million, seven hundred ninety-three thousand, seven hundred twenty-seven".