28710853 has 8 divisors (see below), whose sum is σ = 29556248. Its totient is φ = 27869184.

The previous prime is 28710833. The next prime is 28710883. The reversal of 28710853 is 35801782.

It can be written as a sum of positive squares in 4 ways, for example, as 11546404 + 17164449 = 3398^2 + 4143^2 .

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 28710853 - 2⁵ = 28710821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28710823) 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, 24325 + ... + 25477.

It is an arithmetic number, because the mean of its divisors is an integer number (3694531).

Almost surely, 2^28710853 is an apocalyptic number.

It is an amenable number.

28710853 is a deficient number, since it is larger than the sum of its proper divisors (845395).

28710853 is a wasteful number, since it uses less digits than its factorization.

28710853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1863.

The product of its (nonzero) digits is 13440, while the sum is 34.

The square root of 28710853 is about 5358.2509273083. The cubic root of 28710853 is about 306.2071766861.

The spelling of 28710853 in words is "twenty-eight million, seven hundred ten thousand, eight hundred fifty-three".