2747121 has 8 divisors (see below), whose sum is σ = 3944640. Its totient is φ = 1690512.

The previous prime is 2747119. The next prime is 2747131. The reversal of 2747121 is 1217472.

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

It is not a de Polignac number, because 2747121 - 2¹ = 2747119 is a prime.

It is a Curzon number.

2747121 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 2747091 and 2747100.

It is not an unprimeable number, because it can be changed into a prime (2747111) 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, 35181 + ... + 35258.

It is an arithmetic number, because the mean of its divisors is an integer number (493080).

2^2747121 is an apocalyptic number.

It is an amenable number.

2747121 is a deficient number, since it is larger than the sum of its proper divisors (1197519).

2747121 is a wasteful number, since it uses less digits than its factorization.

2747121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70455.

The product of its digits is 784, while the sum is 24.

The square root of 2747121 is about 1657.4441167050. Note that the first 3 decimals coincide. The cubic root of 2747121 is about 140.0530581204.

The spelling of 2747121 in words is "two million, seven hundred forty-seven thousand, one hundred twenty-one".