2721573 has 8 divisors (see below), whose sum is σ = 4032000. Its totient is φ = 1814364.

The previous prime is 2721557. The next prime is 2721577. The reversal of 2721573 is 3751272.

It is not a de Polignac number, because 2721573 - 2⁴ = 2721557 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 100799 = 2721573 / (2 + 7 + 2 + 1 + 5 + 7 + 3).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2721577) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50373 + ... + 50426.

It is an arithmetic number, because the mean of its divisors is an integer number (504000).

2^2721573 is an apocalyptic number.

It is an amenable number.

2721573 is a deficient number, since it is larger than the sum of its proper divisors (1310427).

2721573 is a wasteful number, since it uses less digits than its factorization.

2721573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100808 (or 100802 counting only the distinct ones).

The product of its digits is 2940, while the sum is 27.

The square root of 2721573 is about 1649.7190669929. The cubic root of 2721573 is about 139.6175445858.

The spelling of 2721573 in words is "two million, seven hundred twenty-one thousand, five hundred seventy-three".