28329793 has 8 divisors (see below), whose sum is σ = 28788480. Its totient is φ = 27874800.

The previous prime is 28329787. The next prime is 28329823. The reversal of 28329793 is 39792382.

It is a happy number.

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 28329793 - 2⁹ = 28329281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28389793) 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, 17296 + ... + 18862.

It is an arithmetic number, because the mean of its divisors is an integer number (3598560).

Almost surely, 2^28329793 is an apocalyptic number.

It is an amenable number.

28329793 is a deficient number, since it is larger than the sum of its proper divisors (458687).

28329793 is a wasteful number, since it uses less digits than its factorization.

28329793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1847.

The product of its digits is 163296, while the sum is 43.

The square root of 28329793 is about 5322.5739074249. The cubic root of 28329793 is about 304.8464442480.

The spelling of 28329793 in words is "twenty-eight million, three hundred twenty-nine thousand, seven hundred ninety-three".