8223043761 has 27 divisors (see below), whose sum is σ = 12015662763. Its totient is φ = 5419096560.

The previous prime is 8223043739. The next prime is 8223043771. The reversal of 8223043761 is 1673403228.

It is a happy number.

The square root of 8223043761 is 90681.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 90611361 + 8132432400 = 9519^2 + 90180^2 .

It is a de Polignac number, because none of the positive numbers 2^k-8223043761 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8223043711) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 45431091 + ... + 45431271.

Almost surely, 2^8223043761 is an apocalyptic number.

8223043761 is the 90681-st square number.

8223043761 is the 45341-st centered octagonal number.

It is an amenable number.

8223043761 is a deficient number, since it is larger than the sum of its proper divisors (3792619002).

8223043761 is an equidigital number, since it uses as much as digits as its factorization.

8223043761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 702 (or 351 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The cubic root of 8223043761 is about 2018.4168689971.

Multiplying 8223043761 by its sum of digits (36), we get a square (296029575396 = 544086²).

Adding to 8223043761 its reverse (1673403228), we get a palindrome (9896446989).

The spelling of 8223043761 in words is "eight billion, two hundred twenty-three million, forty-three thousand, seven hundred sixty-one".