11978486 has 8 divisors (see below), whose sum is σ = 19349904. Its totient is φ = 5528520.

The previous prime is 11978459. The next prime is 11978503. The reversal of 11978486 is 68487911.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 230330 + ... + 230381.

It is an arithmetic number, because the mean of its divisors is an integer number (2418738).

Almost surely, 2^11978486 is an apocalyptic number.

11978486 is a deficient number, since it is larger than the sum of its proper divisors (7371418).

11978486 is a wasteful number, since it uses less digits than its factorization.

11978486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 460726.

The product of its digits is 96768, while the sum is 44.

The square root of 11978486 is about 3460.9949436542. The cubic root of 11978486 is about 228.8059478746.

The spelling of 11978486 in words is "eleven million, nine hundred seventy-eight thousand, four hundred eighty-six".