27320385 has 32 divisors (see below), whose sum is σ = 46316160. Its totient is φ = 13713408.

The previous prime is 27320383. The next prime is 27320401. The reversal of 27320385 is 58302372.

It is not a de Polignac number, because 27320385 - 2¹ = 27320383 is a prime.

It is not an unprimeable number, because it can be changed into a prime (27320383) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 73059 + ... + 73431.

It is an arithmetic number, because the mean of its divisors is an integer number (1447380).

Almost surely, 2^27320385 is an apocalyptic number.

It is an amenable number.

27320385 is a deficient number, since it is larger than the sum of its proper divisors (18995775).

27320385 is a wasteful number, since it uses less digits than its factorization.

27320385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 657.

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 27320385 is about 5226.8905670580. The cubic root of 27320385 is about 301.1819483228.

The spelling of 27320385 in words is "twenty-seven million, three hundred twenty thousand, three hundred eighty-five".