27157197 has 8 divisors (see below), whose sum is σ = 36233856. Its totient is φ = 18092672.

The previous prime is 27157171. The next prime is 27157219. The reversal of 27157197 is 79175172.

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 27157197 - 2⁷ = 27157069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27157127) 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, 6268 + ... + 9674.

It is an arithmetic number, because the mean of its divisors is an integer number (4529232).

Almost surely, 2^27157197 is an apocalyptic number.

It is an amenable number.

27157197 is a deficient number, since it is larger than the sum of its proper divisors (9076659).

27157197 is a wasteful number, since it uses less digits than its factorization.

27157197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6067.

The product of its digits is 30870, while the sum is 39.

The square root of 27157197 is about 5211.2567582110. The cubic root of 27157197 is about 300.5810848524.

The spelling of 27157197 in words is "twenty-seven million, one hundred fifty-seven thousand, one hundred ninety-seven".