27315247 has 8 divisors (see below), whose sum is σ = 28307072. Its totient is φ = 26330400.

The previous prime is 27315241. The next prime is 27315259. The reversal of 27315247 is 74251372.

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 27315247 - 2¹¹ = 27313199 is a prime.

It is a super-2 number, since 2×27315247² = 1492245437342018, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27315241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6997 + ... + 10177.

It is an arithmetic number, because the mean of its divisors is an integer number (3538384).

Almost surely, 2^27315247 is an apocalyptic number.

27315247 is a deficient number, since it is larger than the sum of its proper divisors (991825).

27315247 is a wasteful number, since it uses less digits than its factorization.

27315247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3489.

The product of its digits is 11760, while the sum is 31.

The square root of 27315247 is about 5226.3990471452. The cubic root of 27315247 is about 301.1630665749.

The spelling of 27315247 in words is "twenty-seven million, three hundred fifteen thousand, two hundred forty-seven".