9874865 has 32 divisors (see below), whose sum is σ = 15918336. Its totient is φ = 5679360.

The previous prime is 9874853. The next prime is 9874901. The reversal of 9874865 is 5684789.

It is not a de Polignac number, because 9874865 - 2¹⁸ = 9612721 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4019 + ... + 5991.

It is an arithmetic number, because the mean of its divisors is an integer number (497448).

Almost surely, 2^9874865 is an apocalyptic number.

It is an amenable number.

9874865 is a deficient number, since it is larger than the sum of its proper divisors (6043471).

9874865 is a wasteful number, since it uses less digits than its factorization.

9874865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2009.

The product of its digits is 483840, while the sum is 47.

The square root of 9874865 is about 3142.4297923740. The cubic root of 9874865 is about 214.5410436870.

The spelling of 9874865 in words is "nine million, eight hundred seventy-four thousand, eight hundred sixty-five".