8223539537 has 4 divisors (see below), whose sum is σ = 8259450420. Its totient is φ = 8187628656.

The previous prime is 8223539521. The next prime is 8223539563. The reversal of 8223539537 is 7359353228.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5305811281 + 2917728256 = 72841^2 + 54016^2 .

It is a cyclic number.

It is not a de Polignac number, because 8223539537 - 2⁴ = 8223539521 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8223539491 and 8223539500.

It is not an unprimeable number, because it can be changed into a prime (8223539237) 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, 17955098 + ... + 17955555.

It is an arithmetic number, because the mean of its divisors is an integer number (2064862605).

Almost surely, 2^8223539537 is an apocalyptic number.

It is an amenable number.

8223539537 is a deficient number, since it is larger than the sum of its proper divisors (35910883).

8223539537 is a wasteful number, since it uses less digits than its factorization.

8223539537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35910882.

The product of its digits is 1360800, while the sum is 47.

The square root of 8223539537 is about 90683.7335854672. The cubic root of 8223539537 is about 2018.4574323440.

The spelling of 8223539537 in words is "eight billion, two hundred twenty-three million, five hundred thirty-nine thousand, five hundred thirty-seven".