7223533 has 2 divisors, whose sum is σ = 7223534. Its totient is φ = 7223532.

The previous prime is 7223519. The next prime is 7223537. The reversal of 7223533 is 3353227.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5368489 + 1855044 = 2317^2 + 1362^2 .

It is an emirp because it is prime and its reverse (3353227) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7223533 is a prime.

It is a d-powerful number, because it can be written as 7⁷ + 2⁸ + 2⁸ + 3⁸ + 5⁶ + 3¹³ + 3¹⁴ .

It is a junction number, because it is equal to n+sod(n) for n = 7223498 and 7223507.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7223537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3611766 + 3611767.

It is an arithmetic number, because the mean of its divisors is an integer number (3611767).

Almost surely, 2^7223533 is an apocalyptic number.

It is an amenable number.

7223533 is a deficient number, since it is larger than the sum of its proper divisors (1).

7223533 is an equidigital number, since it uses as much as digits as its factorization.

7223533 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3780, while the sum is 25.

The square root of 7223533 is about 2687.6631113292. The cubic root of 7223533 is about 193.3080264801.

The spelling of 7223533 in words is "seven million, two hundred twenty-three thousand, five hundred thirty-three".