2893686849 has 45 divisors (see below), whose sum is σ = 4457600433. Its totient is φ = 1870705368.

The previous prime is 2893686827. The next prime is 2893686893. The reversal of 2893686849 is 9486863982.

The square root of 2893686849 is 53793.

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

It is not a de Polignac number, because 2893686849 - 2⁹ = 2893686337 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2893686899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 20817822 + ... + 20817960.

Almost surely, 2^2893686849 is an apocalyptic number.

2893686849 is the 53793-rd square number.

2893686849 is the 26897-th centered octagonal number.

It is an amenable number.

2893686849 is a deficient number, since it is larger than the sum of its proper divisors (1563913584).

2893686849 is an frugal number, since it uses more digits than its factorization.

2893686849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376 (or 185 counting only the distinct ones).

The product of its digits is 35831808, while the sum is 63.

The cubic root of 2893686849 is about 1425.0075877712.

The spelling of 2893686849 in words is "two billion, eight hundred ninety-three million, six hundred eighty-six thousand, eight hundred forty-nine".