27967841 has 4 divisors (see below), whose sum is σ = 30510384. Its totient is φ = 25425300.

The previous prime is 27967811. The next prime is 27967843. The reversal of 27967841 is 14876972.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 27967841 - 2¹⁴ = 27951457 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 27967792 and 27967801.

It is not an unprimeable number, because it can be changed into a prime (27967843) 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 3 ways as a sum of consecutive naturals, for example, 1271255 + ... + 1271276.

It is an arithmetic number, because the mean of its divisors is an integer number (7627596).

Almost surely, 2^27967841 is an apocalyptic number.

It is an amenable number.

27967841 is a deficient number, since it is larger than the sum of its proper divisors (2542543).

27967841 is a wasteful number, since it uses less digits than its factorization.

27967841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2542542.

The product of its digits is 169344, while the sum is 44.

The square root of 27967841 is about 5288.4630092306. The cubic root of 27967841 is about 303.5425982889.

The spelling of 27967841 in words is "twenty-seven million, nine hundred sixty-seven thousand, eight hundred forty-one".