2725641 has 12 divisors (see below), whose sum is σ = 4029168. Its totient is φ = 1774584.

The previous prime is 2725621. The next prime is 2725643. The reversal of 2725641 is 1465272.

It is not a de Polignac number, because 2725641 - 2¹⁴ = 2709257 is a prime.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2725643) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3135 + ... + 3908.

It is an arithmetic number, because the mean of its divisors is an integer number (335764).

2^2725641 is an apocalyptic number.

It is an amenable number.

2725641 is a deficient number, since it is larger than the sum of its proper divisors (1303527).

2725641 is a wasteful number, since it uses less digits than its factorization.

2725641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7092 (or 7089 counting only the distinct ones).

The product of its digits is 3360, while the sum is 27.

The square root of 2725641 is about 1650.9515438074. The cubic root of 2725641 is about 139.6870731786.

The spelling of 2725641 in words is "two million, seven hundred twenty-five thousand, six hundred forty-one".