2868981 has 8 divisors (see below), whose sum is σ = 4026720. Its totient is φ = 1811952.

The previous prime is 2868977. The next prime is 2869001. The reversal of 2868981 is 1898682.

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

It is not a de Polignac number, because 2868981 - 2² = 2868977 is a prime.

It is a super-2 number, since 2×2868981² = 16462103956722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2868961) 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, 25110 + ... + 25223.

It is an arithmetic number, because the mean of its divisors is an integer number (503340).

2^2868981 is an apocalyptic number.

It is an amenable number.

2868981 is a deficient number, since it is larger than the sum of its proper divisors (1157739).

2868981 is a wasteful number, since it uses less digits than its factorization.

2868981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50355.

The product of its digits is 55296, while the sum is 42.

The square root of 2868981 is about 1693.8066595689. The cubic root of 2868981 is about 142.0940493137.

Subtracting from 2868981 its reverse (1898682), we obtain a cube (970299 = 99³).

The spelling of 2868981 in words is "two million, eight hundred sixty-eight thousand, nine hundred eighty-one".