7223998 has 8 divisors (see below), whose sum is σ = 10937592. Its totient is φ = 3578136.

The previous prime is 7223981. The next prime is 7223999. The reversal of 7223998 is 8993227.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×7223998² = 104372294208008, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 7223998.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7223999) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16665 + ... + 17092.

It is an arithmetic number, because the mean of its divisors is an integer number (1367199).

Almost surely, 2^7223998 is an apocalyptic number.

7223998 is a deficient number, since it is larger than the sum of its proper divisors (3713594).

7223998 is a wasteful number, since it uses less digits than its factorization.

7223998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33866.

The product of its digits is 54432, while the sum is 40.

The square root of 7223998 is about 2687.7496163147. The cubic root of 7223998 is about 193.3121743259.

The spelling of 7223998 in words is "seven million, two hundred twenty-three thousand, nine hundred ninety-eight".