7224899 has 4 divisors (see below), whose sum is σ = 7881720. Its totient is φ = 6568080.

The previous prime is 7224869. The next prime is 7224911. The reversal of 7224899 is 9984227.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9984227 = 11 ⋅907657.

It is a cyclic number.

It is not a de Polignac number, because 7224899 - 2¹² = 7220803 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7224809) 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 3 ways as a sum of consecutive naturals, for example, 328394 + ... + 328415.

It is an arithmetic number, because the mean of its divisors is an integer number (1970430).

Almost surely, 2^7224899 is an apocalyptic number.

7224899 is a deficient number, since it is larger than the sum of its proper divisors (656821).

7224899 is a wasteful number, since it uses less digits than its factorization.

7224899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 656820.

The product of its digits is 72576, while the sum is 41.

The square root of 7224899 is about 2687.9172234278. The cubic root of 7224899 is about 193.3202108282.

The spelling of 7224899 in words is "seven million, two hundred twenty-four thousand, eight hundred ninety-nine".