27427745 has 8 divisors (see below), whose sum is σ = 33005184. Its totient is φ = 21880944.

The previous prime is 27427739. The next prime is 27427759. The reversal of 27427745 is 54772472.

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 27427745 - 2²⁰ = 26379169 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 27427699 and 27427708.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5639 + ... + 9308.

It is an arithmetic number, because the mean of its divisors is an integer number (4125648).

Almost surely, 2^27427745 is an apocalyptic number.

It is an amenable number.

27427745 is a deficient number, since it is larger than the sum of its proper divisors (5577439).

27427745 is a wasteful number, since it uses less digits than its factorization.

27427745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15319.

The product of its digits is 109760, while the sum is 38.

The square root of 27427745 is about 5237.1504656636. The cubic root of 27427745 is about 301.5759475421.

The spelling of 27427745 in words is "twenty-seven million, four hundred twenty-seven thousand, seven hundred forty-five".