2720363 has 4 divisors (see below), whose sum is σ = 2863560. Its totient is φ = 2577168.

The previous prime is 2720359. The next prime is 2720381. The reversal of 2720363 is 3630272.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2720363 - 2² = 2720359 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2720303) 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, 71570 + ... + 71607.

It is an arithmetic number, because the mean of its divisors is an integer number (715890).

2^2720363 is an apocalyptic number.

2720363 is a deficient number, since it is larger than the sum of its proper divisors (143197).

2720363 is a wasteful number, since it uses less digits than its factorization.

2720363 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143196.

The product of its (nonzero) digits is 1512, while the sum is 23.

The square root of 2720363 is about 1649.3522971154. The cubic root of 2720363 is about 139.5968503927.

Subtracting 2720363 from its reverse (3630272), we obtain a palindrome (909909).

The spelling of 2720363 in words is "two million, seven hundred twenty thousand, three hundred sixty-three".