7226609 has 12 divisors (see below), whose sum is σ = 7964892. Its totient is φ = 6552000.

The previous prime is 7226587. The next prime is 7226617. The reversal of 7226609 is 9066227.

It can be written as a sum of positive squares in 6 ways, for example, as 1600225 + 5626384 = 1265^2 + 2372^2 .

It is a de Polignac number, because none of the positive numbers 2^k-7226609 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7226629) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9959 + ... + 10659.

It is an arithmetic number, because the mean of its divisors is an integer number (663741).

Almost surely, 2^7226609 is an apocalyptic number.

It is an amenable number.

7226609 is a deficient number, since it is larger than the sum of its proper divisors (738283).

7226609 is a wasteful number, since it uses less digits than its factorization.

7226609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 788 (or 775 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 7226609 is about 2688.2352947612. The cubic root of 7226609 is about 193.3354613982.

The spelling of 7226609 in words is "seven million, two hundred twenty-six thousand, six hundred nine".