2717921449 has 4 divisors (see below), whose sum is σ = 2718051664. Its totient is φ = 2717791236.

The previous prime is 2717921419. The next prime is 2717921471. The reversal of 2717921449 is 9441297172.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2717921449 - 2⁵ = 2717921417 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2717921399 and 2717921408.

It is not an unprimeable number, because it can be changed into a prime (2717921419) 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, 25947 + ... + 78160.

It is an arithmetic number, because the mean of its divisors is an integer number (679512916).

Almost surely, 2^2717921449 is an apocalyptic number.

It is an amenable number.

2717921449 is a deficient number, since it is larger than the sum of its proper divisors (130215).

2717921449 is a wasteful number, since it uses less digits than its factorization.

2717921449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130214.

The product of its digits is 254016, while the sum is 46.

The square root of 2717921449 is about 52133.6882351518. The cubic root of 2717921449 is about 1395.5507473658.

The spelling of 2717921449 in words is "two billion, seven hundred seventeen million, nine hundred twenty-one thousand, four hundred forty-nine".