2883981 has 8 divisors (see below), whose sum is σ = 3939264. Its totient is φ = 1875680.

The previous prime is 2883973. The next prime is 2883983. The reversal of 2883981 is 1893882.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2883981 - 2³ = 2883973 is a prime.

It is a super-2 number, since 2×2883981² = 16634692816722, which contains 22 as substring.

2883981 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2883983) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11601 + ... + 11846.

It is an arithmetic number, because the mean of its divisors is an integer number (492408).

2^2883981 is an apocalyptic number.

It is an amenable number.

2883981 is a deficient number, since it is larger than the sum of its proper divisors (1055283).

2883981 is a wasteful number, since it uses less digits than its factorization.

2883981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23491.

The product of its digits is 27648, while the sum is 39.

The square root of 2883981 is about 1698.2287831738. The cubic root of 2883981 is about 142.3412575168.

Subtracting from 2883981 its reverse (1893882), we obtain a palindrome (990099).

It can be divided in two parts, 28839 and 81, that added together give a triangular number (28920 = T₂₄₀).

The spelling of 2883981 in words is "two million, eight hundred eighty-three thousand, nine hundred eighty-one".