2785484787 has 4 divisors (see below), whose sum is σ = 3713979720. Its totient is φ = 1856989856.

The previous prime is 2785484783. The next prime is 2785484803. The reversal of 2785484787 is 7874845872.

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 2785484787 - 2² = 2785484783 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2785484787.

It is not an unprimeable number, because it can be changed into a prime (2785484783) 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, 464247462 + ... + 464247467.

It is an arithmetic number, because the mean of its divisors is an integer number (928494930).

Almost surely, 2^2785484787 is an apocalyptic number.

2785484787 is a deficient number, since it is larger than the sum of its proper divisors (928494933).

2785484787 is an equidigital number, since it uses as much as digits as its factorization.

2785484787 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 928494932.

The product of its digits is 28098560, while the sum is 60.

The square root of 2785484787 is about 52777.6921340826. The cubic root of 2785484787 is about 1407.0199769952.

The spelling of 2785484787 in words is "two billion, seven hundred eighty-five million, four hundred eighty-four thousand, seven hundred eighty-seven".