11973378 has 16 divisors (see below), whose sum is σ = 24719616. Its totient is φ = 3862320.

The previous prime is 11973361. The next prime is 11973397. The reversal of 11973378 is 87337911.

It is a happy 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, 32001 + ... + 32372.

It is an arithmetic number, because the mean of its divisors is an integer number (1544976).

Almost surely, 2^11973378 is an apocalyptic number.

11973378 is an abundant number, since it is smaller than the sum of its proper divisors (12746238).

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

11973378 is a wasteful number, since it uses less digits than its factorization.

11973378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64409.

The product of its digits is 31752, while the sum is 39.

The square root of 11973378 is about 3460.2569268770. The cubic root of 11973378 is about 228.7734199199.

The spelling of 11973378 in words is "eleven million, nine hundred seventy-three thousand, three hundred seventy-eight".