11831724 has 48 divisors (see below), whose sum is σ = 31127040. Its totient is φ = 3885840.

The previous prime is 11831723. The next prime is 11831747. The reversal of 11831724 is 42713811.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (11831723) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 6897 + ... + 8439.

It is an arithmetic number, because the mean of its divisors is an integer number (648480).

Almost surely, 2^11831724 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 11831724, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15563520).

11831724 is an abundant number, since it is smaller than the sum of its proper divisors (19295316).

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

11831724 is a wasteful number, since it uses less digits than its factorization.

11831724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1627 (or 1619 counting only the distinct ones).

The product of its digits is 1344, while the sum is 27.

The square root of 11831724 is about 3439.7273147737. The cubic root of 11831724 is about 227.8676517219.

It can be divided in two parts, 118317 and 24, that added together give a triangular number (118341 = T₄₈₆).

The spelling of 11831724 in words is "eleven million, eight hundred thirty-one thousand, seven hundred twenty-four".