27738493 has 8 divisors (see below), whose sum is σ = 28892160. Its totient is φ = 26606160.

The previous prime is 27738481. The next prime is 27738523. The reversal of 27738493 is 39483772.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27738493 is a prime.

It is a super-2 number, since 2×27738493² = 1538847987822098, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27738433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2653 + ... + 7906.

It is an arithmetic number, because the mean of its divisors is an integer number (3611520).

Almost surely, 2^27738493 is an apocalyptic number.

It is an amenable number.

27738493 is a deficient number, since it is larger than the sum of its proper divisors (1153667).

27738493 is a wasteful number, since it uses less digits than its factorization.

27738493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10667.

The product of its digits is 254016, while the sum is 43.

The square root of 27738493 is about 5266.7345670728. The cubic root of 27738493 is about 302.7105944240.

The spelling of 27738493 in words is "twenty-seven million, seven hundred thirty-eight thousand, four hundred ninety-three".