28733927 has 4 divisors (see below), whose sum is σ = 30424176. Its totient is φ = 27043680.

The previous prime is 28733899. The next prime is 28733951. The reversal of 28733927 is 72933782.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 28733927 - 2¹⁸ = 28471783 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 (28733977) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 845099 + ... + 845132.

It is an arithmetic number, because the mean of its divisors is an integer number (7606044).

Almost surely, 2^28733927 is an apocalyptic number.

28733927 is a deficient number, since it is larger than the sum of its proper divisors (1690249).

28733927 is a wasteful number, since it uses less digits than its factorization.

28733927 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1690248.

The product of its digits is 127008, while the sum is 41.

The square root of 28733927 is about 5360.4036228627. The cubic root of 28733927 is about 306.2891843795.

The spelling of 28733927 in words is "twenty-eight million, seven hundred thirty-three thousand, nine hundred twenty-seven".