2998881 has 6 divisors (see below), whose sum is σ = 4331730. Its totient is φ = 1999248.

The previous prime is 2998867. The next prime is 2998883. The reversal of 2998881 is 1888992.

It can be written as a sum of positive squares in only one way, i.e., 2030625 + 968256 = 1425^2 + 984^2 .

It is not a de Polignac number, because 2998881 - 2⁷ = 2998753 is a prime.

It is a super-2 number, since 2×2998881² = 17986574504322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2998883) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 166596 + ... + 166613.

It is an arithmetic number, because the mean of its divisors is an integer number (721955).

2^2998881 is an apocalyptic number.

It is an amenable number.

2998881 is a deficient number, since it is larger than the sum of its proper divisors (1332849).

2998881 is a wasteful number, since it uses less digits than its factorization.

2998881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333215 (or 333212 counting only the distinct ones).

The product of its digits is 82944, while the sum is 45.

The square root of 2998881 is about 1731.7277499653. The cubic root of 2998881 is about 144.2070228311.

It can be divided in two parts, 299 and 8881, that added together give a triangular number (9180 = T₁₃₅).

The spelling of 2998881 in words is "two million, nine hundred ninety-eight thousand, eight hundred eighty-one".