27942011 has 4 divisors (see below), whose sum is σ = 28002312. Its totient is φ = 27881712.

The previous prime is 27942007. The next prime is 27942029. The reversal of 27942011 is 11024972.

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

It is a cyclic number.

It is not a de Polignac number, because 27942011 - 2² = 27942007 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27942071) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29450 + ... + 30383.

It is an arithmetic number, because the mean of its divisors is an integer number (7000578).

Almost surely, 2^27942011 is an apocalyptic number.

27942011 is a deficient number, since it is larger than the sum of its proper divisors (60301).

27942011 is an equidigital number, since it uses as much as digits as its factorization.

27942011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60300.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 27942011 is about 5286.0203366994. The cubic root of 27942011 is about 303.4491228304.

Adding to 27942011 its reverse (11024972), we get a palindrome (38966983).

The spelling of 27942011 in words is "twenty-seven million, nine hundred forty-two thousand, eleven".