11873972 has 18 divisors (see below), whose sum is σ = 22841154. Its totient is φ = 5397040.

The previous prime is 11873951. The next prime is 11873987. The reversal of 11873972 is 27937811.

It can be written as a sum of positive squares in only one way, i.e., 6739216 + 5134756 = 2596^2 + 2266^2 .

It is a super-2 number, since 2×11873972² = 281982422113568, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11783 + ... + 12750.

It is an arithmetic number, because the mean of its divisors is an integer number (1268953).

Almost surely, 2^11873972 is an apocalyptic number.

It is an amenable number.

11873972 is a deficient number, since it is larger than the sum of its proper divisors (10967182).

11873972 is a wasteful number, since it uses less digits than its factorization.

11873972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24559 (or 24546 counting only the distinct ones).

The product of its digits is 21168, while the sum is 38.

The square root of 11873972 is about 3445.8630268773. The cubic root of 11873972 is about 228.1385481914.

It can be divided in two parts, 118739 and 72, that added together give a palindrome (118811).

The spelling of 11873972 in words is "eleven million, eight hundred seventy-three thousand, nine hundred seventy-two".