2665039 has 16 divisors (see below), whose sum is σ = 3144960. Its totient is φ = 2234880.

The previous prime is 2665037. The next prime is 2665043. The reversal of 2665039 is 9305662.

2665039 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 2665039 - 2¹ = 2665037 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

2665039 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 2665039.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2665031) 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, 6657 + ... + 7045.

It is an arithmetic number, because the mean of its divisors is an integer number (196560).

2^2665039 is an apocalyptic number.

2665039 is a deficient number, since it is larger than the sum of its proper divisors (479921).

2665039 is a wasteful number, since it uses less digits than its factorization.

2665039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 450.

The product of its (nonzero) digits is 9720, while the sum is 31.

The square root of 2665039 is about 1632.4947166836. The cubic root of 2665039 is about 138.6440351019.

The spelling of 2665039 in words is "two million, six hundred sixty-five thousand, thirty-nine".