2720763 has 8 divisors (see below), whose sum is σ = 4030800. Its totient is φ = 1813824.

The previous prime is 2720747. The next prime is 2720789. The reversal of 2720763 is 3670272.

It is not a de Polignac number, because 2720763 - 2⁴ = 2720747 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 100769 = 2720763 / (2 + 7 + 2 + 0 + 7 + 6 + 3).

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (2720713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50358 + ... + 50411.

It is an arithmetic number, because the mean of its divisors is an integer number (503850).

2^2720763 is an apocalyptic number.

2720763 is a deficient number, since it is larger than the sum of its proper divisors (1310037).

2720763 is a wasteful number, since it uses less digits than its factorization.

2720763 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100778 (or 100772 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 27.

The square root of 2720763 is about 1649.4735523797. The cubic root of 2720763 is about 139.6036921271.

The spelling of 2720763 in words is "two million, seven hundred twenty thousand, seven hundred sixty-three".