27976449 has 16 divisors (see below), whose sum is σ = 38033408. Its totient is φ = 18289152.

The previous prime is 27976433. The next prime is 27976457. The reversal of 27976449 is 94467972.

It is not a de Polignac number, because 27976449 - 2⁴ = 27976433 is a prime.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 27976398 and 27976407.

It is not an unprimeable number, because it can be changed into a prime (27976409) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 36579 + ... + 37335.

It is an arithmetic number, because the mean of its divisors is an integer number (2377088).

Almost surely, 2^27976449 is an apocalyptic number.

It is an amenable number.

27976449 is a deficient number, since it is larger than the sum of its proper divisors (10056959).

27976449 is a wasteful number, since it uses less digits than its factorization.

27976449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 984.

The product of its digits is 762048, while the sum is 48.

The square root of 27976449 is about 5289.2767936647. The cubic root of 27976449 is about 303.5737367509.

The spelling of 27976449 in words is "twenty-seven million, nine hundred seventy-six thousand, four hundred forty-nine".