9870894 has 24 divisors (see below), whose sum is σ = 23331672. Its totient is φ = 2991120.

The previous prime is 9870871. The next prime is 9870907. The reversal of 9870894 is 4980789.

It is a Curzon number.

It is a congruent 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 11 ways as a sum of consecutive naturals, for example, 24729 + ... + 25124.

It is an arithmetic number, because the mean of its divisors is an integer number (972153).

Almost surely, 2^9870894 is an apocalyptic number.

9870894 is an abundant number, since it is smaller than the sum of its proper divisors (13460778).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9870894 is a wasteful number, since it uses less digits than its factorization.

9870894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49872 (or 49869 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The square root of 9870894 is about 3141.7978929269. The cubic root of 9870894 is about 214.5122818860.

The spelling of 9870894 in words is "nine million, eight hundred seventy thousand, eight hundred ninety-four".