27429689 has 8 divisors (see below), whose sum is σ = 31508928. Its totient is φ = 23390640.

The previous prime is 27429683. The next prime is 27429707. The reversal of 27429689 is 98692472.

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

It is not a de Polignac number, because 27429689 - 2⁸ = 27429433 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (27429683) 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, 8567 + ... + 11324.

It is an arithmetic number, because the mean of its divisors is an integer number (3938616).

Almost surely, 2^27429689 is an apocalyptic number.

It is an amenable number.

27429689 is a deficient number, since it is larger than the sum of its proper divisors (4079239).

27429689 is a wasteful number, since it uses less digits than its factorization.

27429689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20095.

The product of its digits is 435456, while the sum is 47.

The square root of 27429689 is about 5237.3360594867. The cubic root of 27429689 is about 301.5830723202.

The spelling of 27429689 in words is "twenty-seven million, four hundred twenty-nine thousand, six hundred eighty-nine".