2721275 has 24 divisors (see below), whose sum is σ = 3772080. Its totient is φ = 1935360.

The previous prime is 2721259. The next prime is 2721307. The reversal of 2721275 is 5721272.

It is not a de Polignac number, because 2721275 - 2⁴ = 2721259 is a prime.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 7907 + ... + 8243.

It is an arithmetic number, because the mean of its divisors is an integer number (157170).

2^2721275 is an apocalyptic number.

2721275 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2721275 is a deficient number, since it is larger than the sum of its proper divisors (1050805).

2721275 is a wasteful number, since it uses less digits than its factorization.

2721275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 383 (or 378 counting only the distinct ones).

The product of its digits is 1960, while the sum is 26.

The square root of 2721275 is about 1649.6287461123. The cubic root of 2721275 is about 139.6124485687.

The spelling of 2721275 in words is "two million, seven hundred twenty-one thousand, two hundred seventy-five".