28068753 has 4 divisors (see below), whose sum is σ = 37425008. Its totient is φ = 18712500.

The previous prime is 28068739. The next prime is 28068791. The reversal of 28068753 is 35786082.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 28068753 - 2⁴ = 28068737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28068253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4678123 + ... + 4678128.

It is an arithmetic number, because the mean of its divisors is an integer number (9356252).

Almost surely, 2^28068753 is an apocalyptic number.

It is an amenable number.

28068753 is a deficient number, since it is larger than the sum of its proper divisors (9356255).

28068753 is an equidigital number, since it uses as much as digits as its factorization.

28068753 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9356254.

The product of its (nonzero) digits is 80640, while the sum is 39.

The square root of 28068753 is about 5297.9951868608. The cubic root of 28068753 is about 303.9072352290.

The spelling of 28068753 in words is "twenty-eight million, sixty-eight thousand, seven hundred fifty-three".