7229605 has 4 divisors (see below), whose sum is σ = 8675532. Its totient is φ = 5783680.

The previous prime is 7229591. The next prime is 7229609. The reversal of 7229605 is 5069227.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5069227 = 43 ⋅117889.

It can be written as a sum of positive squares in 2 ways, for example, as 3104644 + 4124961 = 1762^2 + 2031^2 .

It is not a de Polignac number, because 7229605 - 2⁷ = 7229477 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7229609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 722956 + ... + 722965.

It is an arithmetic number, because the mean of its divisors is an integer number (2168883).

Almost surely, 2^7229605 is an apocalyptic number.

It is an amenable number.

7229605 is a deficient number, since it is larger than the sum of its proper divisors (1445927).

7229605 is a wasteful number, since it uses less digits than its factorization.

7229605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1445926.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 7229605 is about 2688.7924799062. The cubic root of 7229605 is about 193.3621753113.

The spelling of 7229605 in words is "seven million, two hundred twenty-nine thousand, six hundred five".