2639704 has 16 divisors (see below), whose sum is σ = 4979520. Its totient is φ = 1311840.

The previous prime is 2639701. The next prime is 2639711. The reversal of 2639704 is 4079362.

It is a zygodrome in base 3.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2639701) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 537 + ... + 2359.

It is an arithmetic number, because the mean of its divisors is an integer number (311220).

2^2639704 is an apocalyptic number.

It is an amenable number.

2639704 is a deficient number, since it is larger than the sum of its proper divisors (2339816).

2639704 is a wasteful number, since it uses less digits than its factorization.

With its predecessor (2639703) it forms a Ruth-Aaron pair, since the sum of their distinct prime factors is the same (2006).

2639704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2010 (or 2006 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 2639704 is about 1624.7165906705. The cubic root of 2639704 is about 138.2032990403.

The spelling of 2639704 in words is "two million, six hundred thirty-nine thousand, seven hundred four".