27394689 has 16 divisors (see below), whose sum is σ = 42873728. Its totient is φ = 15230592.

The previous prime is 27394651. The next prime is 27394709. The reversal of 27394689 is 98649372.

It is not a de Polignac number, because 27394689 - 2¹¹ = 27392641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27394649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16852 + ... + 18405.

It is an arithmetic number, because the mean of its divisors is an integer number (2679608).

Almost surely, 2^27394689 is an apocalyptic number.

It is an amenable number.

27394689 is a deficient number, since it is larger than the sum of its proper divisors (15479039).

27394689 is a wasteful number, since it uses less digits than its factorization.

27394689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35304.

The product of its digits is 653184, while the sum is 48.

The square root of 27394689 is about 5233.9935995375. The cubic root of 27394689 is about 301.4547454278.

It can be divided in two parts, 27 and 394689, that added together give a triangular number (394716 = T₈₈₈).

The spelling of 27394689 in words is "twenty-seven million, three hundred ninety-four thousand, six hundred eighty-nine".