2885981 has 8 divisors (see below), whose sum is σ = 3321600. Its totient is φ = 2456208.

The previous prime is 2885977. The next prime is 2885983. The reversal of 2885981 is 1895882.

2885981 is nontrivially palindromic in base 9.

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 2885981 - 2² = 2885977 is a prime.

It is a super-2 number, since 2×2885981² = 16657772664722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2885983) 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, 341 + ... + 2426.

It is an arithmetic number, because the mean of its divisors is an integer number (415200).

2^2885981 is an apocalyptic number.

It is an amenable number.

2885981 is a deficient number, since it is larger than the sum of its proper divisors (435619).

2885981 is a wasteful number, since it uses less digits than its factorization.

2885981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2923.

The product of its digits is 46080, while the sum is 41.

The square root of 2885981 is about 1698.8175299307. The cubic root of 2885981 is about 142.3741537960.

Subtracting from 2885981 its reverse (1895882), we obtain a palindrome (990099).

The spelling of 2885981 in words is "two million, eight hundred eighty-five thousand, nine hundred eighty-one".