2720173 has 8 divisors (see below), whose sum is σ = 2911520. Its totient is φ = 2533680.

The previous prime is 2720149. The next prime is 2720183. The reversal of 2720173 is 3710272.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2720173 - 2¹³ = 2711981 is a prime.

It is a super-2 number, since 2×2720173² = 14798682299858, which contains 22 as substring.

It is a Duffinian number.

2720173 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2720183) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15 + ... + 2332.

It is an arithmetic number, because the mean of its divisors is an integer number (363940).

2^2720173 is an apocalyptic number.

It is an amenable number.

2720173 is a deficient number, since it is larger than the sum of its proper divisors (191347).

2720173 is a wasteful number, since it uses less digits than its factorization.

2720173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2427.

The product of its (nonzero) digits is 588, while the sum is 22.

The square root of 2720173 is about 1649.2946977420. The cubic root of 2720173 is about 139.5936003339.

Subtracting 2720173 from its reverse (3710272), we obtain a palindrome (990099).

The spelling of 2720173 in words is "two million, seven hundred twenty thousand, one hundred seventy-three".