27992938 has 8 divisors (see below), whose sum is σ = 43344000. Its totient is φ = 13544940.

The previous prime is 27992911. The next prime is 27992953. The reversal of 27992938 is 83929972.

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

It is a junction number, because it is equal to n+sod(n) for n = 27992891 and 27992900.

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, 225688 + ... + 225811.

It is an arithmetic number, because the mean of its divisors is an integer number (5418000).

Almost surely, 2^27992938 is an apocalyptic number.

27992938 is a deficient number, since it is larger than the sum of its proper divisors (15351062).

27992938 is a wasteful number, since it uses less digits than its factorization.

27992938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451532.

The product of its digits is 489888, while the sum is 49.

The square root of 27992938 is about 5290.8352837714. The cubic root of 27992938 is about 303.6333660037.

The spelling of 27992938 in words is "twenty-seven million, nine hundred ninety-two thousand, nine hundred thirty-eight".