7229805 has 32 divisors (see below), whose sum is σ = 12925440. Its totient is φ = 3420480.

The previous prime is 7229791. The next prime is 7229809. The reversal of 7229805 is 5089227.

It is not a de Polignac number, because 7229805 - 2⁶ = 7229741 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7229809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6586 + ... + 7604.

It is an arithmetic number, because the mean of its divisors is an integer number (403920).

Almost surely, 2^7229805 is an apocalyptic number.

It is an amenable number.

7229805 is a deficient number, since it is larger than the sum of its proper divisors (5695635).

7229805 is a wasteful number, since it uses less digits than its factorization.

7229805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1081.

The product of its (nonzero) digits is 10080, while the sum is 33.

The square root of 7229805 is about 2688.8296710651. The cubic root of 7229805 is about 193.3639583538.

The spelling of 7229805 in words is "seven million, two hundred twenty-nine thousand, eight hundred five".