27988246 has 16 divisors (see below), whose sum is σ = 49322448. Its totient is φ = 11743200.

The previous prime is 27988237. The next prime is 27988291. The reversal of 27988246 is 64288972.

It is a junction number, because it is equal to n+sod(n) for n = 27988196 and 27988205.

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, 48645 + ... + 49216.

It is an arithmetic number, because the mean of its divisors is an integer number (3082653).

Almost surely, 2^27988246 is an apocalyptic number.

27988246 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

27988246 is a deficient number, since it is larger than the sum of its proper divisors (21334202).

27988246 is a wasteful number, since it uses less digits than its factorization.

27988246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97887.

The product of its digits is 387072, while the sum is 46.

The square root of 27988246 is about 5290.3918569422. The cubic root of 27988246 is about 303.6164006849.

The spelling of 27988246 in words is "twenty-seven million, nine hundred eighty-eight thousand, two hundred forty-six".