2720353 has 4 divisors (see below), whose sum is σ = 2725380. Its totient is φ = 2715328.

The previous prime is 2720329. The next prime is 2720359. The reversal of 2720353 is 3530272.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 134689 + 2585664 = 367^2 + 1608^2 .

It is a cyclic number.

It is not a de Polignac number, because 2720353 - 2⁵ = 2720321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2720359) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1588 + ... + 2821.

It is an arithmetic number, because the mean of its divisors is an integer number (681345).

2^2720353 is an apocalyptic number.

It is an amenable number.

2720353 is a deficient number, since it is larger than the sum of its proper divisors (5027).

2720353 is an equidigital number, since it uses as much as digits as its factorization.

2720353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5026.

The product of its (nonzero) digits is 1260, while the sum is 22.

The square root of 2720353 is about 1649.3492656196. The cubic root of 2720353 is about 139.5966793407.

The spelling of 2720353 in words is "two million, seven hundred twenty thousand, three hundred fifty-three".