2639039 has 8 divisors (see below), whose sum is σ = 2908752. Its totient is φ = 2378880.

The previous prime is 2638973. The next prime is 2639041. The reversal of 2639039 is 9309362.

2639039 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2639039 - 2¹² = 2634943 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2638996 and 2639014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2639069) 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 7 ways as a sum of consecutive naturals, for example, 1802 + ... + 2919.

It is an arithmetic number, because the mean of its divisors is an integer number (363594).

2^2639039 is an apocalyptic number.

2639039 is a deficient number, since it is larger than the sum of its proper divisors (269713).

2639039 is a wasteful number, since it uses less digits than its factorization.

2639039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4777.

The product of its (nonzero) digits is 8748, while the sum is 32.

The square root of 2639039 is about 1624.5119267029. The cubic root of 2639039 is about 138.1916925732.

The spelling of 2639039 in words is "two million, six hundred thirty-nine thousand, thirty-nine".