9870537 has 4 divisors (see below), whose sum is σ = 13160720. Its totient is φ = 6580356.

The previous prime is 9870503. The next prime is 9870541. The reversal of 9870537 is 7350789.

9870537 is digitally balanced in base 2, 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 not a de Polignac number, because 9870537 - 2⁷ = 9870409 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9870495 and 9870504.

It is not an unprimeable number, because it can be changed into a prime (9870547) 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, 1645087 + ... + 1645092.

It is an arithmetic number, because the mean of its divisors is an integer number (3290180).

Almost surely, 2^9870537 is an apocalyptic number.

It is an amenable number.

9870537 is a deficient number, since it is larger than the sum of its proper divisors (3290183).

9870537 is a wasteful number, since it uses less digits than its factorization.

9870537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3290182.

The product of its (nonzero) digits is 52920, while the sum is 39.

The square root of 9870537 is about 3141.7410778102. The cubic root of 9870537 is about 214.5096957707.

The spelling of 9870537 in words is "nine million, eight hundred seventy thousand, five hundred thirty-seven".