27742093 has 4 divisors (see below), whose sum is σ = 27753568. Its totient is φ = 27730620.

The previous prime is 27742081. The next prime is 27742139. The reversal of 27742093 is 39024772.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 27742093 - 2¹⁷ = 27611021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27742063) 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, 543 + ... + 7468.

It is an arithmetic number, because the mean of its divisors is an integer number (6938392).

Almost surely, 2^27742093 is an apocalyptic number.

It is an amenable number.

27742093 is a deficient number, since it is larger than the sum of its proper divisors (11475).

27742093 is an equidigital number, since it uses as much as digits as its factorization.

27742093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11474.

The product of its (nonzero) digits is 21168, while the sum is 34.

The square root of 27742093 is about 5267.0763237303. The cubic root of 27742093 is about 302.7236894757.

The spelling of 27742093 in words is "twenty-seven million, seven hundred forty-two thousand, ninety-three".