2724881 has 4 divisors (see below), whose sum is σ = 2728500. Its totient is φ = 2721264.

The previous prime is 2724877. The next prime is 2724929. The reversal of 2724881 is 1884272.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 1985281 + 739600 = 1409^2 + 860^2 .

It is a cyclic number.

It is not a de Polignac number, because 2724881 - 2² = 2724877 is a prime.

It is a super-2 number, since 2×2724881² = 14849952928322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2724181) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 206 + ... + 2343.

It is an arithmetic number, because the mean of its divisors is an integer number (682125).

2^2724881 is an apocalyptic number.

It is an amenable number.

2724881 is a deficient number, since it is larger than the sum of its proper divisors (3619).

2724881 is a wasteful number, since it uses less digits than its factorization.

2724881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3618.

The product of its digits is 7168, while the sum is 32.

The square root of 2724881 is about 1650.7213574677. The cubic root of 2724881 is about 139.6740888268.

The spelling of 2724881 in words is "two million, seven hundred twenty-four thousand, eight hundred eighty-one".