2689249247 has 8 divisors (see below), whose sum is σ = 2696023440. Its totient is φ = 2682484480.

The previous prime is 2689249231. The next prime is 2689249253. The reversal of 2689249247 is 7429429862.

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 2689249247 - 2⁴ = 2689249231 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2689243247) 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, 1291247 + ... + 1293327.

It is an arithmetic number, because the mean of its divisors is an integer number (337002930).

Almost surely, 2^2689249247 is an apocalyptic number.

2689249247 is a deficient number, since it is larger than the sum of its proper divisors (6774193).

2689249247 is a wasteful number, since it uses less digits than its factorization.

2689249247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4713.

The product of its digits is 3483648, while the sum is 53.

The square root of 2689249247 is about 51857.9718751129. The cubic root of 2689249247 is about 1390.6260222065.

The spelling of 2689249247 in words is "two billion, six hundred eighty-nine million, two hundred forty-nine thousand, two hundred forty-seven".