2852721 has 9 divisors (see below), whose sum is σ = 4127929. Its totient is φ = 1898436.

The previous prime is 2852711. The next prime is 2852743. The reversal of 2852721 is 1272582.

The square root of 2852721 is 1689.

It is a perfect power (a square), and thus also a powerful number.

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 2852721 - 2²¹ = 755569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2852711) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 4786 + ... + 5348.

2^2852721 is an apocalyptic number.

2852721 is the 1689-th square number.

2852721 is the 845-th centered octagonal number.

It is an amenable number.

2852721 is a deficient number, since it is larger than the sum of its proper divisors (1275208).

2852721 is an frugal number, since it uses more digits than its factorization.

2852721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1132 (or 566 counting only the distinct ones).

The product of its digits is 2240, while the sum is 27.

The cubic root of 2852721 is about 141.8251004111.

The spelling of 2852721 in words is "two million, eight hundred fifty-two thousand, seven hundred twenty-one".