2721753 has 6 divisors (see below), whose sum is σ = 3931434. Its totient is φ = 1814496.

The previous prime is 2721727. The next prime is 2721767. The reversal of 2721753 is 3571272.

It can be written as a sum of positive squares in only one way, i.e., 2442969 + 278784 = 1563^2 + 528^2 .

It is not a de Polignac number, because 2721753 - 2⁵ = 2721721 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2721773) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 151200 + ... + 151217.

It is an arithmetic number, because the mean of its divisors is an integer number (655239).

2^2721753 is an apocalyptic number.

It is an amenable number.

2721753 is a deficient number, since it is larger than the sum of its proper divisors (1209681).

2721753 is a wasteful number, since it uses less digits than its factorization.

2721753 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302423 (or 302420 counting only the distinct ones).

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

The square root of 2721753 is about 1649.7736208341. The cubic root of 2721753 is about 139.6206225366.

It can be divided in two parts, 272 and 1753, that added together give a square (2025 = 45²).

The spelling of 2721753 in words is "two million, seven hundred twenty-one thousand, seven hundred fifty-three".