9869400 has 72 divisors (see below), whose sum is σ = 33150780. Its totient is φ = 2631360.

The previous prime is 9869399. The next prime is 9869411. The reversal of 9869400 is 49689.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 942 + ... + 4541.

Almost surely, 2^9869400 is an apocalyptic number.

9869400 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9869400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16575390).

9869400 is an abundant number, since it is smaller than the sum of its proper divisors (23281380).

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

9869400 is a wasteful number, since it uses less digits than its factorization.

9869400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5505 (or 5493 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 9869400 is about 3141.5601219776. The cubic root of 9869400 is about 214.5014589041.

The spelling of 9869400 in words is "nine million, eight hundred sixty-nine thousand, four hundred".