27348989 has 4 divisors (see below), whose sum is σ = 27985056. Its totient is φ = 26712924.

The previous prime is 27348983. The next prime is 27348991. The reversal of 27348989 is 98984372.

It is a happy number.

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 27348989 - 2⁴ = 27348973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27348983) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 317969 + ... + 318054.

It is an arithmetic number, because the mean of its divisors is an integer number (6996264).

Almost surely, 2^27348989 is an apocalyptic number.

It is an amenable number.

27348989 is a deficient number, since it is larger than the sum of its proper divisors (636067).

27348989 is an equidigital number, since it uses as much as digits as its factorization.

27348989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 636066.

The product of its digits is 870912, while the sum is 50.

The square root of 27348989 is about 5229.6260860601. The cubic root of 27348989 is about 301.2870225327.

The spelling of 27348989 in words is "twenty-seven million, three hundred forty-eight thousand, nine hundred eighty-nine".