27213285 has 32 divisors (see below), whose sum is σ = 47900160. Its totient is φ = 13083200.

The previous prime is 27213247. The next prime is 27213287. The reversal of 27213285 is 58231272.

It is not a de Polignac number, because 27213285 - 2⁷ = 27213157 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27213287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20986 + ... + 22244.

It is an arithmetic number, because the mean of its divisors is an integer number (1496880).

Almost surely, 2^27213285 is an apocalyptic number.

It is an amenable number.

27213285 is a deficient number, since it is larger than the sum of its proper divisors (20686875).

27213285 is a wasteful number, since it uses less digits than its factorization.

27213285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1409.

The product of its digits is 6720, while the sum is 30.

The square root of 27213285 is about 5216.6354099170. The cubic root of 27213285 is about 300.7878734843.

It can be divided in two parts, 2721 and 3285, that added together give a palindrome (6006).

The spelling of 27213285 in words is "twenty-seven million, two hundred thirteen thousand, two hundred eighty-five".