10997844 has 144 divisors (see below), whose sum is σ = 33203520. Its totient is φ = 2795520.

The previous prime is 10997821. The next prime is 10997851. The reversal of 10997844 is 44879901.

It is a junction number, because it is equal to n+sod(n) for n = 10997796 and 10997805.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 379222 + ... + 379250.

It is an arithmetic number, because the mean of its divisors is an integer number (230580).

Almost surely, 2^10997844 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10997844, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16601760).

10997844 is an abundant number, since it is smaller than the sum of its proper divisors (22205676).

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

10997844 is a wasteful number, since it uses less digits than its factorization.

10997844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90 (or 75 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 42.

The square root of 10997844 is about 3316.2997451980. The cubic root of 10997844 is about 222.3834781043.

The spelling of 10997844 in words is "ten million, nine hundred ninety-seven thousand, eight hundred forty-four".