2289621817 has 16 divisors (see below), whose sum is σ = 2682148480. Its totient is φ = 1913611392.

The previous prime is 2289621787. The next prime is 2289621869. The reversal of 2289621817 is 7181269822.

2289621817 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2289621817 - 2²⁷ = 2155404089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2289621877) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 178309 + ... + 190717.

It is an arithmetic number, because the mean of its divisors is an integer number (167634280).

Almost surely, 2^2289621817 is an apocalyptic number.

It is an amenable number.

2289621817 is a deficient number, since it is larger than the sum of its proper divisors (392526663).

2289621817 is a wasteful number, since it uses less digits than its factorization.

2289621817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13072.

The product of its digits is 193536, while the sum is 46.

The square root of 2289621817 is about 47849.9928631134. The cubic root of 2289621817 is about 1318.0177273389.

The spelling of 2289621817 in words is "two billion, two hundred eighty-nine million, six hundred twenty-one thousand, eight hundred seventeen".