11972884 has 24 divisors (see below), whose sum is σ = 26123328. Its totient is φ = 4664640.

The previous prime is 11972837. The next prime is 11972899. The reversal of 11972884 is 48827911.

It is a happy number.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

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 7 ways as a sum of consecutive naturals, for example, 19129 + ... + 19744.

It is an arithmetic number, because the mean of its divisors is an integer number (1088472).

Almost surely, 2^11972884 is an apocalyptic number.

11972884 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

11972884 is an abundant number, since it is smaller than the sum of its proper divisors (14150444).

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

11972884 is a wasteful number, since it uses less digits than its factorization.

11972884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38895 (or 38893 counting only the distinct ones).

The product of its digits is 32256, while the sum is 40.

The square root of 11972884 is about 3460.1855441580. The cubic root of 11972884 is about 228.7702736170.

The spelling of 11972884 in words is "eleven million, nine hundred seventy-two thousand, eight hundred eighty-four".