9872537 has 4 divisors (see below), whose sum is σ = 9893136. Its totient is φ = 9851940.

The previous prime is 9872521. The next prime is 9872567. The reversal of 9872537 is 7352789.

9872537 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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.

It is a cyclic number.

It is not a de Polignac number, because 9872537 - 2⁴ = 9872521 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9872494 and 9872503.

It is not an unprimeable number, because it can be changed into a prime (9872567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9563 + ... + 10544.

It is an arithmetic number, because the mean of its divisors is an integer number (2473284).

Almost surely, 2^9872537 is an apocalyptic number.

It is an amenable number.

9872537 is a deficient number, since it is larger than the sum of its proper divisors (20599).

9872537 is a wasteful number, since it uses less digits than its factorization.

9872537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20598.

The product of its digits is 105840, while the sum is 41.

The square root of 9872537 is about 3142.0593565367. The cubic root of 9872537 is about 214.5241830074.

The spelling of 9872537 in words is "nine million, eight hundred seventy-two thousand, five hundred thirty-seven".