2272705 has 4 divisors (see below), whose sum is σ = 2727252. Its totient is φ = 1818160.

The previous prime is 2272691. The next prime is 2272727. The reversal of 2272705 is 5072722.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5072722 = 2 ⋅2536361.

It can be written as a sum of positive squares in 2 ways, for example, as 1256641 + 1016064 = 1121^2 + 1008^2 .

It is not a de Polignac number, because 2272705 - 2¹³ = 2264513 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2272705.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 227266 + ... + 227275.

It is an arithmetic number, because the mean of its divisors is an integer number (681813).

2^2272705 is an apocalyptic number.

It is an amenable number.

2272705 is a deficient number, since it is larger than the sum of its proper divisors (454547).

2272705 is an equidigital number, since it uses as much as digits as its factorization.

2272705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 454546.

The product of its (nonzero) digits is 1960, while the sum is 25.

The square root of 2272705 is about 1507.5493358428. The cubic root of 2272705 is about 131.4763652242.

It can be divided in two parts, 22 and 72705, that added together give a palindrome (72727).

The spelling of 2272705 in words is "two million, two hundred seventy-two thousand, seven hundred five".