2720073 has 4 divisors (see below), whose sum is σ = 3626768. Its totient is φ = 1813380.

The previous prime is 2720071. The next prime is 2720089. The reversal of 2720073 is 3700272.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2720073 - 2¹ = 2720071 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2720071) 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, 453343 + ... + 453348.

It is an arithmetic number, because the mean of its divisors is an integer number (906692).

2^2720073 is an apocalyptic number.

It is an amenable number.

2720073 is a deficient number, since it is larger than the sum of its proper divisors (906695).

2720073 is an equidigital number, since it uses as much as digits as its factorization.

2720073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 906694.

The product of its (nonzero) digits is 588, while the sum is 21.

The square root of 2720073 is about 1649.2643814744. The cubic root of 2720073 is about 139.5918897158.

It can be divided in two parts, 27 and 20073, that added together give a triangular number (20100 = T₂₀₀).

The spelling of 2720073 in words is "two million, seven hundred twenty thousand, seventy-three".