2720853 has 6 divisors (see below), whose sum is σ = 3930134. Its totient is φ = 1813896.

The previous prime is 2720849. The next prime is 2720881. The reversal of 2720853 is 3580272.

It can be written as a sum of positive squares in only one way, i.e., 2566404 + 154449 = 1602^2 + 393^2 .

It is not a de Polignac number, because 2720853 - 2² = 2720849 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2720843) 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, 151150 + ... + 151167.

2^2720853 is an apocalyptic number.

It is an amenable number.

2720853 is a deficient number, since it is larger than the sum of its proper divisors (1209281).

2720853 is a wasteful number, since it uses less digits than its factorization.

2720853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302323 (or 302320 counting only the distinct ones).

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

The square root of 2720853 is about 1649.5008335857. The cubic root of 2720853 is about 139.6052314249.

It can be divided in two parts, 27208 and 53, that added together give a triangular number (27261 = T₂₃₃).

The spelling of 2720853 in words is "two million, seven hundred twenty thousand, eight hundred fifty-three".