27379217 has 4 divisors (see below), whose sum is σ = 27895860. Its totient is φ = 26862576.

The previous prime is 27379213. The next prime is 27379229. The reversal of 27379217 is 71297372.

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 24196561 + 3182656 = 4919^2 + 1784^2 .

It is a cyclic number.

It is not a de Polignac number, because 27379217 - 2² = 27379213 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27379213) 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, 258242 + ... + 258347.

It is an arithmetic number, because the mean of its divisors is an integer number (6973965).

Almost surely, 2^27379217 is an apocalyptic number.

It is an amenable number.

27379217 is a deficient number, since it is larger than the sum of its proper divisors (516643).

27379217 is an equidigital number, since it uses as much as digits as its factorization.

27379217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 516642.

The product of its digits is 37044, while the sum is 38.

The square root of 27379217 is about 5232.5153607037. The cubic root of 27379217 is about 301.3979827689.

The spelling of 27379217 in words is "twenty-seven million, three hundred seventy-nine thousand, two hundred seventeen".