27669541 has 8 divisors (see below), whose sum is σ = 28222040. Its totient is φ = 27122688.

The previous prime is 27669497. The next prime is 27669553. The reversal of 27669541 is 14596672.

It can be written as a sum of positive squares in 4 ways, for example, as 13764100 + 13905441 = 3710^2 + 3729^2 .

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

It is not a de Polignac number, because 27669541 - 2⁹ = 27669029 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 27669494 and 27669503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27669571) 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, 9265 + ... + 11881.

It is an arithmetic number, because the mean of its divisors is an integer number (3527755).

Almost surely, 2^27669541 is an apocalyptic number.

It is an amenable number.

27669541 is a deficient number, since it is larger than the sum of its proper divisors (552499).

27669541 is a wasteful number, since it uses less digits than its factorization.

27669541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2823.

The product of its digits is 90720, while the sum is 40.

The square root of 27669541 is about 5260.1845024676. The cubic root of 27669541 is about 302.4595615639.

The spelling of 27669541 in words is "twenty-seven million, six hundred sixty-nine thousand, five hundred forty-one".