7321223 has 16 divisors (see below), whose sum is σ = 9225216. Its totient is φ = 5654880.

The previous prime is 7321219. The next prime is 7321231. The reversal of 7321223 is 3221237.

It is not a de Polignac number, because 7321223 - 2² = 7321219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7321195 and 7321204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7321123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2978 + ... + 4848.

It is an arithmetic number, because the mean of its divisors is an integer number (576576).

Almost surely, 2^7321223 is an apocalyptic number.

7321223 is a deficient number, since it is larger than the sum of its proper divisors (1903993).

7321223 is a wasteful number, since it uses less digits than its factorization.

7321223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1934.

The product of its digits is 504, while the sum is 20.

The square root of 7321223 is about 2705.7758591576. The cubic root of 7321223 is about 194.1755505236.

The spelling of 7321223 in words is "seven million, three hundred twenty-one thousand, two hundred twenty-three".