7220804 has 12 divisors (see below), whose sum is σ = 13185984. Its totient is φ = 3453384.

The previous prime is 7220803. The next prime is 7220821. The reversal of 7220804 is 4080227.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a self number, because there is not a number n which added to its sum of digits gives 7220804.

It is not an unprimeable number, because it can be changed into a prime (7220803) 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, 39152 + ... + 39335.

It is an arithmetic number, because the mean of its divisors is an integer number (1098832).

Almost surely, 2^7220804 is an apocalyptic number.

It is an amenable number.

7220804 is a deficient number, since it is larger than the sum of its proper divisors (5965180).

7220804 is a wasteful number, since it uses less digits than its factorization.

7220804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78514 (or 78512 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 23.

The square root of 7220804 is about 2687.1553732525. The cubic root of 7220804 is about 193.2836799426.

The spelling of 7220804 in words is "seven million, two hundred twenty thousand, eight hundred four".