2780713 has 4 divisors (see below), whose sum is σ = 2994628. Its totient is φ = 2566800.

The previous prime is 2780693. The next prime is 2780719. The reversal of 2780713 is 3170872.

It is a happy number.

2780713 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 1172889 + 1607824 = 1083^2 + 1268^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2780713 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2780719) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106938 + ... + 106963.

It is an arithmetic number, because the mean of its divisors is an integer number (748657).

2^2780713 is an apocalyptic number.

It is an amenable number.

2780713 is a deficient number, since it is larger than the sum of its proper divisors (213915).

2780713 is a wasteful number, since it uses less digits than its factorization.

2780713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213914.

The product of its (nonzero) digits is 2352, while the sum is 28.

The square root of 2780713 is about 1667.5470008369. The cubic root of 2780713 is about 140.6216067000.

The spelling of 2780713 in words is "two million, seven hundred eighty thousand, seven hundred thirteen".