8521038037 has 4 divisors (see below), whose sum is σ = 8540016300. Its totient is φ = 8502059776.

The previous prime is 8521038023. The next prime is 8521038083. The reversal of 8521038037 is 7308301258.

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 4501604836 + 4019433201 = 67094^2 + 63399^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8521038037 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8521037987 and 8521038005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8521038437) 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, 9488458 + ... + 9489355.

It is an arithmetic number, because the mean of its divisors is an integer number (2135004075).

Almost surely, 2^8521038037 is an apocalyptic number.

It is an amenable number.

8521038037 is a deficient number, since it is larger than the sum of its proper divisors (18978263).

8521038037 is a wasteful number, since it uses less digits than its factorization.

8521038037 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18978262.

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 8521038037 is about 92309.4688371675. The cubic root of 8521038037 is about 2042.5098894634.

The spelling of 8521038037 in words is "eight billion, five hundred twenty-one million, thirty-eight thousand, thirty-seven".