2797669449 has 27 divisors (see below), whose sum is σ = 4202726983. Its totient is φ = 1862256744.

The previous prime is 2797669429. The next prime is 2797669451. The reversal of 2797669449 is 9449667972.

The square root of 2797669449 is 52893.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 651015225 + 2146654224 = 25515^2 + 46332^2 .

It is a tau number, because it is divible by the number of its divisors (27).

It is not a de Polignac number, because 2797669449 - 2¹¹ = 2797667401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2797669429) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 4284007 + ... + 4284659.

Almost surely, 2^2797669449 is an apocalyptic number.

2797669449 is the 52893-rd square number.

2797669449 is the 26447-th centered octagonal number.

It is an amenable number.

2797669449 is a deficient number, since it is larger than the sum of its proper divisors (1405057534).

2797669449 is an frugal number, since it uses more digits than its factorization.

2797669449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1330 (or 656 counting only the distinct ones).

The product of its digits is 41150592, while the sum is 63.

The cubic root of 2797669449 is about 1409.0685881267.

The spelling of 2797669449 in words is "two billion, seven hundred ninety-seven million, six hundred sixty-nine thousand, four hundred forty-nine".