27071057 has 8 divisors (see below), whose sum is σ = 29250984. Its totient is φ = 24905088.

The previous prime is 27071047. The next prime is 27071059. The reversal of 27071057 is 75017072.

It can be written as a sum of positive squares in 4 ways, for example, as 5550736 + 21520321 = 2356^2 + 4639^2 .

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

It is not a de Polignac number, because 27071057 - 2⁶ = 27070993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27071059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 743 + ... + 7395.

It is an arithmetic number, because the mean of its divisors is an integer number (3656373).

Almost surely, 2^27071057 is an apocalyptic number.

It is an amenable number.

27071057 is a deficient number, since it is larger than the sum of its proper divisors (2179927).

27071057 is a wasteful number, since it uses less digits than its factorization.

27071057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6979.

The product of its (nonzero) digits is 3430, while the sum is 29.

The square root of 27071057 is about 5202.9853930220. The cubic root of 27071057 is about 300.2629435424.

The spelling of 27071057 in words is "twenty-seven million, seventy-one thousand, fifty-seven".