28614785 has 4 divisors (see below), whose sum is σ = 34337748. Its totient is φ = 22891824.

The previous prime is 28614763. The next prime is 28614811. The reversal of 28614785 is 58741682.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3041536 + 25573249 = 1744^2 + 5057^2 .

It is a cyclic number.

It is not a de Polignac number, because 28614785 - 2⁶ = 28614721 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2861474 + ... + 2861483.

It is an arithmetic number, because the mean of its divisors is an integer number (8584437).

Almost surely, 2^28614785 is an apocalyptic number.

It is an amenable number.

28614785 is a deficient number, since it is larger than the sum of its proper divisors (5722963).

28614785 is an equidigital number, since it uses as much as digits as its factorization.

28614785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5722962.

The product of its digits is 107520, while the sum is 41.

The square root of 28614785 is about 5349.2789233690. The cubic root of 28614785 is about 305.8652666992.

The spelling of 28614785 in words is "twenty-eight million, six hundred fourteen thousand, seven hundred eighty-five".