2881617 has 16 divisors (see below), whose sum is σ = 3981312. Its totient is φ = 1852880.

The previous prime is 2881591. The next prime is 2881621. The reversal of 2881617 is 7161882.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2881617 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (2881657) 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, 14992 + ... + 15182.

It is an arithmetic number, because the mean of its divisors is an integer number (248832).

2^2881617 is an apocalyptic number.

It is an amenable number.

2881617 is a deficient number, since it is larger than the sum of its proper divisors (1099695).

2881617 is a wasteful number, since it uses less digits than its factorization.

2881617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348.

The product of its digits is 5376, while the sum is 33.

The square root of 2881617 is about 1697.5326211888. The cubic root of 2881617 is about 142.3023544963.

The spelling of 2881617 in words is "two million, eight hundred eighty-one thousand, six hundred seventeen".