27987446 has 4 divisors (see below), whose sum is σ = 41981172. Its totient is φ = 13993722.

The previous prime is 27987439. The next prime is 27987467. The reversal of 27987446 is 64478972.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 27987446.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6996860 + ... + 6996863.

It is an arithmetic number, because the mean of its divisors is an integer number (10495293).

Almost surely, 2^27987446 is an apocalyptic number.

27987446 is a deficient number, since it is larger than the sum of its proper divisors (13993726).

27987446 is a wasteful number, since it uses less digits than its factorization.

27987446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13993725.

The product of its digits is 677376, while the sum is 47.

The square root of 27987446 is about 5290.3162476359. The cubic root of 27987446 is about 303.6135078582.

The spelling of 27987446 in words is "twenty-seven million, nine hundred eighty-seven thousand, four hundred forty-six".