27021297 has 8 divisors (see below), whose sum is σ = 37594944. Its totient is φ = 17230928.

The previous prime is 27021289. The next prime is 27021311. The reversal of 27021297 is 79212072.

It is a happy number.

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 27021297 - 2³ = 27021289 is a prime.

It is not an unprimeable number, because it can be changed into a prime (27021217) 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, 195738 + ... + 195875.

It is an arithmetic number, because the mean of its divisors is an integer number (4699368).

Almost surely, 2^27021297 is an apocalyptic number.

It is an amenable number.

27021297 is a deficient number, since it is larger than the sum of its proper divisors (10573647).

27021297 is a wasteful number, since it uses less digits than its factorization.

27021297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391639.

The product of its (nonzero) digits is 3528, while the sum is 30.

The square root of 27021297 is about 5198.2013235349. The cubic root of 27021297 is about 300.0788570478.

The spelling of 27021297 in words is "twenty-seven million, twenty-one thousand, two hundred ninety-seven".