11978552 has 16 divisors (see below), whose sum is σ = 22777200. Its totient is φ = 5904640.

The previous prime is 11978539. The next prime is 11978567. The reversal of 11978552 is 25587911.

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 3 ways as a sum of consecutive naturals, for example, 9977 + ... + 11112.

It is an arithmetic number, because the mean of its divisors is an integer number (1423575).

Almost surely, 2^11978552 is an apocalyptic number.

It is an amenable number.

11978552 is a deficient number, since it is larger than the sum of its proper divisors (10798648).

11978552 is a wasteful number, since it uses less digits than its factorization.

11978552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21166 (or 21162 counting only the distinct ones).

The product of its digits is 25200, while the sum is 38.

The square root of 11978552 is about 3461.0044784715. The cubic root of 11978552 is about 228.8063681048.

The spelling of 11978552 in words is "eleven million, nine hundred seventy-eight thousand, five hundred fifty-two".