11447982 has 96 divisors (see below), whose sum is σ = 31711680. Its totient is φ = 2903040.

The previous prime is 11447977. The next prime is 11447993. The reversal of 11447982 is 28974411.

It is a super-3 number, since 3×11447982³ (a number of 22 digits) contains 333 as substring.

11447982 is an undulating number in base 16.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 47382 + ... + 47622.

It is an arithmetic number, because the mean of its divisors is an integer number (330330).

Almost surely, 2^11447982 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11447982, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15855840).

11447982 is an abundant number, since it is smaller than the sum of its proper divisors (20263698).

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

11447982 is a wasteful number, since it uses less digits than its factorization.

11447982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298 (or 295 counting only the distinct ones).

The product of its digits is 16128, while the sum is 36.

The square root of 11447982 is about 3383.4866631923. The cubic root of 11447982 is about 225.3770271310.

The spelling of 11447982 in words is "eleven million, four hundred forty-seven thousand, nine hundred eighty-two".