27738073 has 4 divisors (see below), whose sum is σ = 30259728. Its totient is φ = 25216420.

The previous prime is 27738047. The next prime is 27738077. The reversal of 27738073 is 37083772.

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 27738073 - 2⁵ = 27738041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27738077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1260811 + ... + 1260832.

It is an arithmetic number, because the mean of its divisors is an integer number (7564932).

Almost surely, 2^27738073 is an apocalyptic number.

It is an amenable number.

27738073 is a deficient number, since it is larger than the sum of its proper divisors (2521655).

27738073 is a wasteful number, since it uses less digits than its factorization.

27738073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2521654.

The product of its (nonzero) digits is 49392, while the sum is 37.

The square root of 27738073 is about 5266.6946940183. The cubic root of 27738073 is about 302.7090665941.

The spelling of 27738073 in words is "twenty-seven million, seven hundred thirty-eight thousand, seventy-three".