2785247 has 4 divisors (see below), whose sum is σ = 2881320. Its totient is φ = 2689176.

The previous prime is 2785241. The next prime is 2785261. The reversal of 2785247 is 7425872.

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

It is a cyclic number.

It is not a de Polignac number, because 2785247 - 2¹⁴ = 2768863 is a prime.

It is a d-powerful number, because it can be written as 2⁵ + 7³ + 8 + 5⁹ + 2¹³ + 4 + 7⁷ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2785241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47993 + ... + 48050.

It is an arithmetic number, because the mean of its divisors is an integer number (720330).

2^2785247 is an apocalyptic number.

2785247 is a deficient number, since it is larger than the sum of its proper divisors (96073).

2785247 is an equidigital number, since it uses as much as digits as its factorization.

2785247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96072.

The product of its digits is 31360, while the sum is 35.

The square root of 2785247 is about 1668.9059290445. The cubic root of 2785247 is about 140.6979938414.

The spelling of 2785247 in words is "two million, seven hundred eighty-five thousand, two hundred forty-seven".