28710433 has 16 divisors (see below), whose sum is σ = 31670784. Its totient is φ = 25908480.

The previous prime is 28710431. The next prime is 28710449. The reversal of 28710433 is 33401782.

It is a cyclic number.

It is not a de Polignac number, because 28710433 - 2¹ = 28710431 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28710431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82566 + ... + 82912.

It is an arithmetic number, because the mean of its divisors is an integer number (1979424).

Almost surely, 2^28710433 is an apocalyptic number.

It is an amenable number.

28710433 is a deficient number, since it is larger than the sum of its proper divisors (2960351).

28710433 is a wasteful number, since it uses less digits than its factorization.

28710433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 552.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 28710433 is about 5358.2117352714. The cubic root of 28710433 is about 306.2056835499.

The spelling of 28710433 in words is "twenty-eight million, seven hundred ten thousand, four hundred thirty-three".