2720775 has 12 divisors (see below), whose sum is σ = 4498472. Its totient is φ = 1451040.

The previous prime is 2720747. The next prime is 2720789. The reversal of 2720775 is 5770272.

It is not a de Polignac number, because 2720775 - 2¹³ = 2712583 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18064 + ... + 18213.

2^2720775 is an apocalyptic number.

2720775 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2720775 is a deficient number, since it is larger than the sum of its proper divisors (1777697).

2720775 is a wasteful number, since it uses less digits than its factorization.

2720775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36290 (or 36285 counting only the distinct ones).

The product of its (nonzero) digits is 6860, while the sum is 30.

The square root of 2720775 is about 1649.4771898999. The cubic root of 2720775 is about 139.6038973688.

It can be divided in two parts, 27 and 20775, that added together give a palindrome (20802).

The spelling of 2720775 in words is "two million, seven hundred twenty thousand, seven hundred seventy-five".