2720663 has 8 divisors (see below), whose sum is σ = 3142800. Its totient is φ = 2327680.

The previous prime is 2720623. The next prime is 2720671. The reversal of 2720663 is 3660272.

2720663 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2720663 - 2¹⁶ = 2655127 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 (2720603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7088 + ... + 7461.

It is an arithmetic number, because the mean of its divisors is an integer number (392850).

2^2720663 is an apocalyptic number.

2720663 is a deficient number, since it is larger than the sum of its proper divisors (422137).

2720663 is a wasteful number, since it uses less digits than its factorization.

2720663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14577.

The product of its (nonzero) digits is 3024, while the sum is 26.

The square root of 2720663 is about 1649.4432393993. The cubic root of 2720663 is about 139.6019817564.

The spelling of 2720663 in words is "two million, seven hundred twenty thousand, six hundred sixty-three".