28040853 has 8 divisors (see below), whose sum is σ = 37428768. Its totient is φ = 18673424.

The previous prime is 28040849. The next prime is 28040863. The reversal of 28040853 is 35804082.

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 28040853 - 2² = 28040849 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28040853.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28040863) 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, 1575 + ... + 7652.

It is an arithmetic number, because the mean of its divisors is an integer number (4678596).

Almost surely, 2^28040853 is an apocalyptic number.

It is an amenable number.

28040853 is a deficient number, since it is larger than the sum of its proper divisors (9387915).

28040853 is a wasteful number, since it uses less digits than its factorization.

28040853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10243.

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 28040853 is about 5295.3614607503. The cubic root of 28040853 is about 303.8065084794.

The spelling of 28040853 in words is "twenty-eight million, forty thousand, eight hundred fifty-three".