27907389 has 16 divisors (see below), whose sum is σ = 41913600. Its totient is φ = 18348768.

The previous prime is 27907381. The next prime is 27907391. The reversal of 27907389 is 98370972.

It is not a de Polignac number, because 27907389 - 2³ = 27907381 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27907381) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5109 + ... + 9050.

It is an arithmetic number, because the mean of its divisors is an integer number (2619600).

Almost surely, 2^27907389 is an apocalyptic number.

It is an amenable number.

27907389 is a deficient number, since it is larger than the sum of its proper divisors (14006211).

27907389 is a wasteful number, since it uses less digits than its factorization.

27907389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14241 (or 14235 counting only the distinct ones).

The product of its (nonzero) digits is 190512, while the sum is 45.

The square root of 27907389 is about 5282.7444571927. The cubic root of 27907389 is about 303.3237398514.

The spelling of 27907389 in words is "twenty-seven million, nine hundred seven thousand, three hundred eighty-nine".