27700213 has 4 divisors (see below), whose sum is σ = 28344448. Its totient is φ = 27055980.

The previous prime is 27700207. The next prime is 27700219. The reversal of 27700213 is 31200772.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (27700207) and next prime (27700219).

It is a cyclic number.

It is not a de Polignac number, because 27700213 - 2⁵ = 27700181 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27700219) 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, 322053 + ... + 322138.

It is an arithmetic number, because the mean of its divisors is an integer number (7086112).

Almost surely, 2^27700213 is an apocalyptic number.

It is an amenable number.

27700213 is a deficient number, since it is larger than the sum of its proper divisors (644235).

27700213 is an equidigital number, since it uses as much as digits as its factorization.

27700213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 644234.

The product of its (nonzero) digits is 588, while the sum is 22.

The square root of 27700213 is about 5263.0991820409. The cubic root of 27700213 is about 302.5712802450.

Adding to 27700213 its reverse (31200772), we get a palindrome (58900985).

The spelling of 27700213 in words is "twenty-seven million, seven hundred thousand, two hundred thirteen".