28733773 has 8 divisors (see below), whose sum is σ = 29030400. Its totient is φ = 28439088.

The previous prime is 28733759. The next prime is 28733797. The reversal of 28733773 is 37733782.

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

It is a cyclic number.

It is not a de Polignac number, because 28733773 - 2¹³ = 28725581 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 (28730773) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59748 + ... + 60226.

It is an arithmetic number, because the mean of its divisors is an integer number (3628800).

Almost surely, 2^28733773 is an apocalyptic number.

It is an amenable number.

28733773 is a deficient number, since it is larger than the sum of its proper divisors (296627).

28733773 is a wasteful number, since it uses less digits than its factorization.

28733773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 971.

The product of its digits is 148176, while the sum is 40.

The square root of 28733773 is about 5360.3892582535. The cubic root of 28733773 is about 306.2886371910.

Subtracting 28733773 from its reverse (37733782), we obtain a palindrome (9000009).

The spelling of 28733773 in words is "twenty-eight million, seven hundred thirty-three thousand, seven hundred seventy-three".