27257641 has 8 divisors (see below), whose sum is σ = 28125320. Its totient is φ = 26396928.

The previous prime is 27257639. The next prime is 27257653. The reversal of 27257641 is 14675272.

It can be written as a sum of positive squares in 4 ways, for example, as 21949225 + 5308416 = 4685^2 + 2304^2 .

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 27257641 - 2¹ = 27257639 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 27257597 and 27257606.

It is not an unprimeable number, because it can be changed into a prime (27251641) 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, 6865 + ... + 10081.

It is an arithmetic number, because the mean of its divisors is an integer number (3515665).

Almost surely, 2^27257641 is an apocalyptic number.

It is an amenable number.

27257641 is a deficient number, since it is larger than the sum of its proper divisors (867679).

27257641 is a wasteful number, since it uses less digits than its factorization.

27257641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3483.

The product of its digits is 23520, while the sum is 34.

The square root of 27257641 is about 5220.8850782219. The cubic root of 27257641 is about 300.9512067574.

The spelling of 27257641 in words is "twenty-seven million, two hundred fifty-seven thousand, six hundred forty-one".