2877281 has 8 divisors (see below), whose sum is σ = 3175200. Its totient is φ = 2585440.

The previous prime is 2877271. The next prime is 2877283. The reversal of 2877281 is 1827782.

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

It is a de Polignac number, because none of the positive numbers 2^k-2877281 is a prime.

It is a super-2 number, since 2×2877281² = 16557491905922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2877283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 491 + ... + 2448.

It is an arithmetic number, because the mean of its divisors is an integer number (396900).

2^2877281 is an apocalyptic number.

It is an amenable number.

2877281 is a deficient number, since it is larger than the sum of its proper divisors (297919).

2877281 is a wasteful number, since it uses less digits than its factorization.

2877281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3039.

The product of its digits is 12544, while the sum is 35.

The square root of 2877281 is about 1696.2549926235. The cubic root of 2877281 is about 142.2309440407.

The spelling of 2877281 in words is "two million, eight hundred seventy-seven thousand, two hundred eighty-one".