28733727 has 16 divisors (see below), whose sum is σ = 41973120. Its totient is φ = 17340000.

The previous prime is 28733717. The next prime is 28733759. The reversal of 28733727 is 72733782.

It is a de Polignac number, because none of the positive numbers 2^k-28733727 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28733717) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6549 + ... + 10017.

It is an arithmetic number, because the mean of its divisors is an integer number (2623320).

Almost surely, 2^28733727 is an apocalyptic number.

28733727 is a deficient number, since it is larger than the sum of its proper divisors (13239393).

28733727 is a wasteful number, since it uses less digits than its factorization.

28733727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3734.

The product of its digits is 98784, while the sum is 39.

The square root of 28733727 is about 5360.3849675187. The cubic root of 28733727 is about 306.2884737448.

The spelling of 28733727 in words is "twenty-eight million, seven hundred thirty-three thousand, seven hundred twenty-seven".