2720273 has 2 divisors, whose sum is σ = 2720274. Its totient is φ = 2720272.

The previous prime is 2720269. The next prime is 2720297. The reversal of 2720273 is 3720272.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2226064 + 494209 = 1492^2 + 703^2 .

It is a cyclic number.

It is not a de Polignac number, because 2720273 - 2² = 2720269 is a prime.

It is a super-3 number, since 3×2720273³ = 60389123693330959251, which contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (2720243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1360136 + 1360137.

It is an arithmetic number, because the mean of its divisors is an integer number (1360137).

2^2720273 is an apocalyptic number.

It is an amenable number.

2720273 is a deficient number, since it is larger than the sum of its proper divisors (1).

2720273 is an equidigital number, since it uses as much as digits as its factorization.

2720273 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1176, while the sum is 23.

The square root of 2720273 is about 1649.3250134525. The cubic root of 2720273 is about 139.5953109100.

Subtracting 2720273 from its reverse (3720272), we obtain a palindrome (999999).

The spelling of 2720273 in words is "two million, seven hundred twenty thousand, two hundred seventy-three".