28305753 has 8 divisors (see below), whose sum is σ = 43132608. Its totient is φ = 16174704.

The previous prime is 28305751. The next prime is 28305757. The reversal of 28305753 is 35750382.

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

It is not a de Polignac number, because 28305753 - 2¹ = 28305751 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28305751) 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, 673926 + ... + 673967.

It is an arithmetic number, because the mean of its divisors is an integer number (5391576).

Almost surely, 2^28305753 is an apocalyptic number.

It is an amenable number.

28305753 is a deficient number, since it is larger than the sum of its proper divisors (14826855).

28305753 is a wasteful number, since it uses less digits than its factorization.

28305753 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1347903.

The product of its (nonzero) digits is 25200, while the sum is 33.

The square root of 28305753 is about 5320.3151222460. The cubic root of 28305753 is about 304.7601913241.

The spelling of 28305753 in words is "twenty-eight million, three hundred five thousand, seven hundred fifty-three".