27157317 has 8 divisors (see below), whose sum is σ = 39501600. Its totient is φ = 16458960.

The previous prime is 27157309. The next prime is 27157337. The reversal of 27157317 is 71375172.

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

It is not a de Polignac number, because 27157317 - 2³ = 27157309 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 822949 = 27157317 / (2 + 7 + 1 + 5 + 7 + 3 + 1 + 7).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27157307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 411442 + ... + 411507.

It is an arithmetic number, because the mean of its divisors is an integer number (4937700).

Almost surely, 2^27157317 is an apocalyptic number.

It is an amenable number.

27157317 is a deficient number, since it is larger than the sum of its proper divisors (12344283).

27157317 is a wasteful number, since it uses less digits than its factorization.

27157317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 822963.

The product of its digits is 10290, while the sum is 33.

The square root of 27157317 is about 5211.2682717358. The cubic root of 27157317 is about 300.5815275794.

The spelling of 27157317 in words is "twenty-seven million, one hundred fifty-seven thousand, three hundred seventeen".