28757353 has 8 divisors (see below), whose sum is σ = 30513672. Its totient is φ = 27008256.

The previous prime is 28757341. The next prime is 28757363. The reversal of 28757353 is 35375782.

It can be written as a sum of positive squares in 4 ways, for example, as 6365529 + 22391824 = 2523^2 + 4732^2 .

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 28757353 - 2⁹ = 28756841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28757303) 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, 7951 + ... + 10987.

It is an arithmetic number, because the mean of its divisors is an integer number (3814209).

Almost surely, 2^28757353 is an apocalyptic number.

It is an amenable number.

28757353 is a deficient number, since it is larger than the sum of its proper divisors (1756319).

28757353 is a wasteful number, since it uses less digits than its factorization.

28757353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3611.

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

The square root of 28757353 is about 5362.5882743317. The cubic root of 28757353 is about 306.3723982219.

The spelling of 28757353 in words is "twenty-eight million, seven hundred fifty-seven thousand, three hundred fifty-three".