2781070 has 16 divisors (see below), whose sum is σ = 5077728. Its totient is φ = 1096480.

The previous prime is 2781067. The next prime is 2781073. The reversal of 2781070 is 701872.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2781067) and next prime (2781073).

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2781073) 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 in 7 ways as a sum of consecutive naturals, for example, 1249 + ... + 2668.

It is an arithmetic number, because the mean of its divisors is an integer number (317358).

2^2781070 is an apocalyptic number.

2781070 is a deficient number, since it is larger than the sum of its proper divisors (2296658).

2781070 is a wasteful number, since it uses less digits than its factorization.

2781070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3995.

The product of its (nonzero) digits is 784, while the sum is 25.

The square root of 2781070 is about 1667.6540408610. The cubic root of 2781070 is about 140.6276243132.

The spelling of 2781070 in words is "two million, seven hundred eighty-one thousand, seventy".