27253897 has 8 divisors (see below), whose sum is σ = 29813760. Its totient is φ = 24707760.

The previous prime is 27253871. The next prime is 27253913. The reversal of 27253897 is 79835272.

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

It is not a de Polignac number, because 27253897 - 2⁷ = 27253769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27253817) 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, 979 + ... + 7447.

It is an arithmetic number, because the mean of its divisors is an integer number (3726720).

Almost surely, 2^27253897 is an apocalyptic number.

It is an amenable number.

27253897 is a deficient number, since it is larger than the sum of its proper divisors (2559863).

27253897 is a wasteful number, since it uses less digits than its factorization.

27253897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6863.

The product of its digits is 211680, while the sum is 43.

The square root of 27253897 is about 5220.5265060145. The cubic root of 27253897 is about 300.9374269771.

The spelling of 27253897 in words is "twenty-seven million, two hundred fifty-three thousand, eight hundred ninety-seven".