28573753 has 8 divisors (see below), whose sum is σ = 32582088. Its totient is φ = 24824064.

The previous prime is 28573709. The next prime is 28573757. The reversal of 28573753 is 35737582.

It can be written as a sum of positive squares in 4 ways, for example, as 2226064 + 26347689 = 1492^2 + 5133^2 .

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 28573753 - 2¹⁷ = 28442681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28573757) 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, 64426 + ... + 64867.

It is an arithmetic number, because the mean of its divisors is an integer number (4072761).

Almost surely, 2^28573753 is an apocalyptic number.

It is an amenable number.

28573753 is a deficient number, since it is larger than the sum of its proper divisors (4008335).

28573753 is a wasteful number, since it uses less digits than its factorization.

28573753 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129323.

The product of its digits is 176400, while the sum is 40.

The square root of 28573753 is about 5345.4422642098. The cubic root of 28573753 is about 305.7189988730.

The spelling of 28573753 in words is "twenty-eight million, five hundred seventy-three thousand, seven hundred fifty-three".