2881965 has 16 divisors (see below), whose sum is σ = 4636800. Its totient is φ = 1528512.

The previous prime is 2881951. The next prime is 2882021. The reversal of 2881965 is 5691882.

It is not a de Polignac number, because 2881965 - 2⁸ = 2881709 is a prime.

It is a super-2 number, since 2×2881965² = 16611444522450, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3016 + ... + 3854.

It is an arithmetic number, because the mean of its divisors is an integer number (289800).

2^2881965 is an apocalyptic number.

It is an amenable number.

2881965 is a deficient number, since it is larger than the sum of its proper divisors (1754835).

2881965 is a wasteful number, since it uses less digits than its factorization.

2881965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1076.

The product of its digits is 34560, while the sum is 39.

The square root of 2881965 is about 1697.6351198064. The cubic root of 2881965 is about 142.3080826720.

The spelling of 2881965 in words is "two million, eight hundred eighty-one thousand, nine hundred sixty-five".