27042909 has 8 divisors (see below), whose sum is σ = 37955040. Its totient is φ = 17079696.

The previous prime is 27042901. The next prime is 27042913. The reversal of 27042909 is 90924072.

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

It is not a de Polignac number, because 27042909 - 2³ = 27042901 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 27042909.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27042901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 237162 + ... + 237275.

It is an arithmetic number, because the mean of its divisors is an integer number (4744380).

Almost surely, 2^27042909 is an apocalyptic number.

It is an amenable number.

27042909 is a deficient number, since it is larger than the sum of its proper divisors (10912131).

27042909 is a wasteful number, since it uses less digits than its factorization.

27042909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 474459.

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 27042909 is about 5200.2797040159. The cubic root of 27042909 is about 300.1588381089.

The spelling of 27042909 in words is "twenty-seven million, forty-two thousand, nine hundred nine".