2782706 has 4 divisors (see below), whose sum is σ = 4174062. Its totient is φ = 1391352.

The previous prime is 2782693. The next prime is 2782709. The reversal of 2782706 is 6072872.

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

It can be written as a sum of positive squares in only one way, i.e., 2739025 + 43681 = 1655^2 + 209^2 .

It is not an unprimeable number, because it can be changed into a prime (2782709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 695675 + ... + 695678.

2^2782706 is an apocalyptic number.

2782706 is a deficient number, since it is larger than the sum of its proper divisors (1391356).

2782706 is a wasteful number, since it uses less digits than its factorization.

2782706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1391355.

The product of its (nonzero) digits is 9408, while the sum is 32.

The square root of 2782706 is about 1668.1444781553. The cubic root of 2782706 is about 140.6551942407.

The spelling of 2782706 in words is "two million, seven hundred eighty-two thousand, seven hundred six".