2738865 has 16 divisors (see below), whose sum is σ = 4413888. Its totient is φ = 1450176.

The previous prime is 2738861. The next prime is 2738899. The reversal of 2738865 is 5688372.

2738865 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2738865 - 2² = 2738861 is a prime.

It is a d-powerful number, because it can be written as 2¹⁸ + 7² + 3¹³ + 8⁶ + 8⁶ + 6⁷ + 5⁷ .

It is not an unprimeable number, because it can be changed into a prime (2738861) 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 15 ways as a sum of consecutive naturals, for example, 1774 + ... + 2936.

It is an arithmetic number, because the mean of its divisors is an integer number (275868).

2^2738865 is an apocalyptic number.

It is an amenable number.

2738865 is a deficient number, since it is larger than the sum of its proper divisors (1675023).

2738865 is a wasteful number, since it uses less digits than its factorization.

2738865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1328.

The product of its digits is 80640, while the sum is 39.

The square root of 2738865 is about 1654.9516609255. The cubic root of 2738865 is about 139.9126155362.

The spelling of 2738865 in words is "two million, seven hundred thirty-eight thousand, eight hundred sixty-five".