27040657 has 8 divisors (see below), whose sum is σ = 30960000. Its totient is φ = 23135424.

The previous prime is 27040631. The next prime is 27040661. The reversal of 27040657 is 75604072.

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 27040657 - 2⁷ = 27040529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27040697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 969 + ... + 7417.

It is an arithmetic number, because the mean of its divisors is an integer number (3870000).

Almost surely, 2^27040657 is an apocalyptic number.

It is an amenable number.

27040657 is a deficient number, since it is larger than the sum of its proper divisors (3919343).

27040657 is an equidigital number, since it uses as much as digits as its factorization.

27040657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7055.

The product of its (nonzero) digits is 11760, while the sum is 31.

The square root of 27040657 is about 5200.0631726932. The cubic root of 27040657 is about 300.1505059620.

It can be divided in two parts, 2704065 and 7, that added together give a palindrome (2704072).

The spelling of 27040657 in words is "twenty-seven million, forty thousand, six hundred fifty-seven".