27000057 has 8 divisors (see below), whose sum is σ = 41142976. Its totient is φ = 15428592.

The previous prime is 27000049. The next prime is 27000079. The reversal of 27000057 is 75000072.

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

It is not a de Polignac number, because 27000057 - 2³ = 27000049 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 1285717 = 27000057 / (2 + 7 + 0 + 0 + 0 + 0 + 5 + 7).

It is a junction number, because it is equal to n+sod(n) for n = 26999997 and 27000042.

It is not an unprimeable number, because it can be changed into a prime (27000257) 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, 642838 + ... + 642879.

It is an arithmetic number, because the mean of its divisors is an integer number (5142872).

Almost surely, 2^27000057 is an apocalyptic number.

It is an amenable number.

27000057 is a deficient number, since it is larger than the sum of its proper divisors (14142919).

27000057 is a wasteful number, since it uses less digits than its factorization.

27000057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1285727.

The product of its (nonzero) digits is 490, while the sum is 21.

The square root of 27000057 is about 5196.1579075313. The cubic root of 27000057 is about 300.0002111110. Note that the first 3 decimals are identical.

The spelling of 27000057 in words is "twenty-seven million, fifty-seven", and thus it is an aban number and an uban number.