27381315 has 16 divisors (see below), whose sum is σ = 47180448. Its totient is φ = 13479936.

The previous prime is 27381311. The next prime is 27381329. The reversal of 27381315 is 51318372.

It is not a de Polignac number, because 27381315 - 2² = 27381311 is a prime.

It is a super-2 number, since 2×27381315² = 1499472822258450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (27381311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70014 + ... + 70403.

It is an arithmetic number, because the mean of its divisors is an integer number (2948778).

Almost surely, 2^27381315 is an apocalyptic number.

27381315 is a deficient number, since it is larger than the sum of its proper divisors (19799133).

27381315 is a wasteful number, since it uses less digits than its factorization.

27381315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140438.

The product of its digits is 5040, while the sum is 30.

The square root of 27381315 is about 5232.7158340579. The cubic root of 27381315 is about 301.4056810268.

Adding to 27381315 its reverse (51318372), we get a palindrome (78699687).

The spelling of 27381315 in words is "twenty-seven million, three hundred eighty-one thousand, three hundred fifteen".