28752843 has 8 divisors (see below), whose sum is σ = 43813888. Its totient is φ = 16430184.

The previous prime is 28752827. The next prime is 28752847. The reversal of 28752843 is 34825782.

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

It is not a de Polignac number, because 28752843 - 2⁴ = 28752827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28752847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 684571 + ... + 684612.

It is an arithmetic number, because the mean of its divisors is an integer number (5476736).

Almost surely, 2^28752843 is an apocalyptic number.

28752843 is a deficient number, since it is larger than the sum of its proper divisors (15061045).

28752843 is a wasteful number, since it uses less digits than its factorization.

28752843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1369193.

The product of its digits is 107520, while the sum is 39.

The square root of 28752843 is about 5362.1677519451. The cubic root of 28752843 is about 306.3563813125.

The spelling of 28752843 in words is "twenty-eight million, seven hundred fifty-two thousand, eight hundred forty-three".