2281617 has 12 divisors (see below), whose sum is σ = 3549364. Its totient is φ = 1404000.

The previous prime is 2281607. The next prime is 2281619. The reversal of 2281617 is 7161822.

It can be written as a sum of positive squares in 2 ways, for example, as 746496 + 1535121 = 864^2 + 1239^2 .

It is not a de Polignac number, because 2281617 - 2⁸ = 2281361 is a prime.

It is a super-2 number, since 2×2281617² = 10411552269378, which contains 22 as substring.

2281617 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2281619) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9634 + ... + 9867.

2^2281617 is an apocalyptic number.

It is an amenable number.

2281617 is a deficient number, since it is larger than the sum of its proper divisors (1267747).

2281617 is a wasteful number, since it uses less digits than its factorization.

2281617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19520 (or 19517 counting only the distinct ones).

The product of its digits is 1344, while the sum is 27.

The square root of 2281617 is about 1510.5022343578. The cubic root of 2281617 is about 131.6479946461.

The spelling of 2281617 in words is "two million, two hundred eighty-one thousand, six hundred seventeen".