8921710537 has 4 divisors (see below), whose sum is σ = 8921971456. Its totient is φ = 8921449620.

The previous prime is 8921710529. The next prime is 8921710543. The reversal of 8921710537 is 7350171298.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 7350171298 = 2 ⋅3675085649.

It is a cyclic number.

It is not a de Polignac number, because 8921710537 - 2³ = 8921710529 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8921710493 and 8921710502.

It is not an unprimeable number, because it can be changed into a prime (8921719537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69753 + ... + 150694.

It is an arithmetic number, because the mean of its divisors is an integer number (2230492864).

Almost surely, 2^8921710537 is an apocalyptic number.

It is an amenable number.

8921710537 is a deficient number, since it is larger than the sum of its proper divisors (260919).

8921710537 is a wasteful number, since it uses less digits than its factorization.

8921710537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260918.

The product of its (nonzero) digits is 105840, while the sum is 43.

The square root of 8921710537 is about 94454.8068496252. The cubic root of 8921710537 is about 2074.0348179289.

The spelling of 8921710537 in words is "eight billion, nine hundred twenty-one million, seven hundred ten thousand, five hundred thirty-seven".