9867444 has 24 divisors (see below), whose sum is σ = 23203488. Its totient is φ = 3263520.

The previous prime is 9867427. The next prime is 9867449. The reversal of 9867444 is 4447689.

It is a junction number, because it is equal to n+sod(n) for n = 9867396 and 9867405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9867449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1567 + ... + 4710.

It is an arithmetic number, because the mean of its divisors is an integer number (966812).

Almost surely, 2^9867444 is an apocalyptic number.

It is an amenable number.

9867444 is an abundant number, since it is smaller than the sum of its proper divisors (13336044).

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

9867444 is a wasteful number, since it uses less digits than its factorization.

9867444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6415 (or 6413 counting only the distinct ones).

The product of its digits is 193536, while the sum is 42.

The square root of 9867444 is about 3141.2487962592. The cubic root of 9867444 is about 214.4872874052.

The spelling of 9867444 in words is "nine million, eight hundred sixty-seven thousand, four hundred forty-four".