7224799 has 4 divisors (see below), whose sum is σ = 7473960. Its totient is φ = 6975640.

The previous prime is 7224773. The next prime is 7224809. The reversal of 7224799 is 9974227.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 7224799 - 2⁷ = 7224671 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7224709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 124537 + ... + 124594.

It is an arithmetic number, because the mean of its divisors is an integer number (1868490).

Almost surely, 2^7224799 is an apocalyptic number.

7224799 is a deficient number, since it is larger than the sum of its proper divisors (249161).

7224799 is a wasteful number, since it uses less digits than its factorization.

7224799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249160.

The product of its digits is 63504, while the sum is 40.

The square root of 7224799 is about 2687.8986216002. The cubic root of 7224799 is about 193.3193189075.

The spelling of 7224799 in words is "seven million, two hundred twenty-four thousand, seven hundred ninety-nine".