28716433 has 8 divisors (see below), whose sum is σ = 29112480. Its totient is φ = 28323360.

The previous prime is 28716431. The next prime is 28716449. The reversal of 28716433 is 33461782.

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 28716433 - 2¹ = 28716431 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28716431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23938 + ... + 25108.

It is an arithmetic number, because the mean of its divisors is an integer number (3639060).

Almost surely, 2^28716433 is an apocalyptic number.

It is an amenable number.

28716433 is a deficient number, since it is larger than the sum of its proper divisors (396047).

28716433 is a wasteful number, since it uses less digits than its factorization.

28716433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1487.

The product of its digits is 24192, while the sum is 34.

The square root of 28716433 is about 5358.7715943115. The cubic root of 28716433 is about 306.2270126853.

The spelling of 28716433 in words is "twenty-eight million, seven hundred sixteen thousand, four hundred thirty-three".