27316397 has 8 divisors (see below), whose sum is σ = 28121976. Its totient is φ = 26514432.

The previous prime is 27316391. The next prime is 27316403. The reversal of 27316397 is 79361372.

It is an interprime number because it is at equal distance from previous prime (27316391) and next prime (27316403).

It can be written as a sum of positive squares in 4 ways, for example, as 4553956 + 22762441 = 2134^2 + 4771^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 27316397 - 2¹² = 27312301 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 27316397.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27316391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24353 + ... + 25449.

It is an arithmetic number, because the mean of its divisors is an integer number (3515247).

Almost surely, 2^27316397 is an apocalyptic number.

It is an amenable number.

27316397 is a deficient number, since it is larger than the sum of its proper divisors (805579).

27316397 is a wasteful number, since it uses less digits than its factorization.

27316397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1807.

The product of its digits is 47628, while the sum is 38.

The square root of 27316397 is about 5226.5090643756. The cubic root of 27316397 is about 301.1672929406.

The spelling of 27316397 in words is "twenty-seven million, three hundred sixteen thousand, three hundred ninety-seven".