2279725 has 18 divisors (see below), whose sum is σ = 3290154. Its totient is φ = 1562400.

The previous prime is 2279707. The next prime is 2279741. The reversal of 2279725 is 5279722.

It can be written as a sum of positive squares in 3 ways, for example, as 35721 + 2244004 = 189^2 + 1498^2 .

It is a de Polignac number, because none of the positive numbers 2^k-2279725 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 295 + ... + 2155.

2^2279725 is an apocalyptic number.

2279725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2279725 is a deficient number, since it is larger than the sum of its proper divisors (1010429).

2279725 is a wasteful number, since it uses less digits than its factorization.

2279725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1885 (or 1873 counting only the distinct ones).

The product of its digits is 17640, while the sum is 34.

The square root of 2279725 is about 1509.8758227086. The cubic root of 2279725 is about 131.6115954774.

It can be divided in two parts, 22797 and 25, that added together give a palindrome (22822).

The spelling of 2279725 in words is "two million, two hundred seventy-nine thousand, seven hundred twenty-five".