27220313 has 4 divisors (see below), whose sum is σ = 27593268. Its totient is φ = 26847360.

The previous prime is 27220301. The next prime is 27220321. The reversal of 27220313 is 31302272.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 16540489 + 10679824 = 4067^2 + 3268^2 .

It is a cyclic number.

It is not a de Polignac number, because 27220313 - 2⁸ = 27220057 is a prime.

It is a super-3 number, since 3×27220313³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27220373) 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, 186368 + ... + 186513.

It is an arithmetic number, because the mean of its divisors is an integer number (6898317).

Almost surely, 2^27220313 is an apocalyptic number.

It is an amenable number.

27220313 is a deficient number, since it is larger than the sum of its proper divisors (372955).

27220313 is an equidigital number, since it uses as much as digits as its factorization.

27220313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372954.

The product of its (nonzero) digits is 504, while the sum is 20.

The square root of 27220313 is about 5217.3089806911. The cubic root of 27220313 is about 300.8137647016.

Adding to 27220313 its reverse (31302272), we get a palindrome (58522585).

The spelling of 27220313 in words is "twenty-seven million, two hundred twenty thousand, three hundred thirteen".