7643223 has 12 divisors (see below), whose sum is σ = 12617488. Its totient is φ = 4367520.

The previous prime is 7643219. The next prime is 7643227. The reversal of 7643223 is 3223467.

It is an interprime number because it is at equal distance from previous prime (7643219) and next prime (7643227).

It is not a de Polignac number, because 7643223 - 2² = 7643219 is a prime.

It is an Ulam number.

It is a d-powerful number, because it can be written as 7⁸ + 6³ + 4⁹ + 3⁹ + 2³ + 2¹¹ + 3¹³ .

It is a Duffinian number.

7643223 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7643227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 60598 + ... + 60723.

Almost surely, 2^7643223 is an apocalyptic number.

7643223 is a deficient number, since it is larger than the sum of its proper divisors (4974265).

7643223 is a wasteful number, since it uses less digits than its factorization.

7643223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121334 (or 121331 counting only the distinct ones).

The product of its digits is 6048, while the sum is 27.

The square root of 7643223 is about 2764.6379509802. The cubic root of 7643223 is about 196.9815317618.

The spelling of 7643223 in words is "seven million, six hundred forty-three thousand, two hundred twenty-three".