7224855 has 16 divisors (see below), whose sum is σ = 12610944. Its totient is φ = 3502880.

The previous prime is 7224839. The next prime is 7224869. The reversal of 7224855 is 5584227.

It is not a de Polignac number, because 7224855 - 2⁴ = 7224839 is a prime.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21729 + ... + 22058.

It is an arithmetic number, because the mean of its divisors is an integer number (788184).

Almost surely, 2^7224855 is an apocalyptic number.

7224855 is a deficient number, since it is larger than the sum of its proper divisors (5386089).

7224855 is a wasteful number, since it uses less digits than its factorization.

7224855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43806.

The product of its digits is 22400, while the sum is 33.

The square root of 7224855 is about 2687.9090386395. The cubic root of 7224855 is about 193.3198183841.

The spelling of 7224855 in words is "seven million, two hundred twenty-four thousand, eight hundred fifty-five".