27420213 has 12 divisors (see below), whose sum is σ = 37781664. Its totient is φ = 17688600.

The previous prime is 27420193. The next prime is 27420229. The reversal of 27420213 is 31202472.

It is not a de Polignac number, because 27420213 - 2⁵ = 27420181 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 27420213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27420013) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1873 + ... + 7638.

It is an arithmetic number, because the mean of its divisors is an integer number (3148472).

Almost surely, 2^27420213 is an apocalyptic number.

It is an amenable number.

27420213 is a deficient number, since it is larger than the sum of its proper divisors (10361451).

27420213 is an equidigital number, since it uses as much as digits as its factorization.

27420213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9576 (or 9545 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 27420213 is about 5236.4313229527. The cubic root of 27420213 is about 301.5483395124.

Adding to 27420213 its reverse (31202472), we get a palindrome (58622685).

The spelling of 27420213 in words is "twenty-seven million, four hundred twenty thousand, two hundred thirteen".