2881671 has 16 divisors (see below), whose sum is σ = 4251744. Its totient is φ = 1724544.

The previous prime is 2881657. The next prime is 2881699. The reversal of 2881671 is 1761882.

It is a happy number.

It is not a de Polignac number, because 2881671 - 2⁵ = 2881639 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2881621) 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 15 ways as a sum of consecutive naturals, for example, 445 + ... + 2441.

It is an arithmetic number, because the mean of its divisors is an integer number (265734).

2^2881671 is an apocalyptic number.

2881671 is a deficient number, since it is larger than the sum of its proper divisors (1370073).

2881671 is a wasteful number, since it uses less digits than its factorization.

2881671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2050.

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

The square root of 2881671 is about 1697.5485265523. The cubic root of 2881671 is about 142.3032433814.

The spelling of 2881671 in words is "two million, eight hundred eighty-one thousand, six hundred seventy-one".