2689343647 has 8 divisors (see below), whose sum is σ = 2706365376. Its totient is φ = 2672339232.

The previous prime is 2689343641. The next prime is 2689343659. The reversal of 2689343647 is 7463439862.

It is a happy number.

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 2689343647 - 2⁷ = 2689343519 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2689343594 and 2689343603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2689343641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 460218 + ... + 466024.

It is an arithmetic number, because the mean of its divisors is an integer number (338295672).

Almost surely, 2^2689343647 is an apocalyptic number.

2689343647 is a deficient number, since it is larger than the sum of its proper divisors (17021729).

2689343647 is a wasteful number, since it uses less digits than its factorization.

2689343647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8657.

The product of its digits is 5225472, while the sum is 52.

The square root of 2689343647 is about 51858.8820454124. The cubic root of 2689343647 is about 1390.6422936078.

The spelling of 2689343647 in words is "two billion, six hundred eighty-nine million, three hundred forty-three thousand, six hundred forty-seven".