27324561 has 16 divisors (see below), whose sum is σ = 40135680. Its totient is φ = 16397520.

The previous prime is 27324553. The next prime is 27324571. The reversal of 27324561 is 16542372.

It is not a de Polignac number, because 27324561 - 2³ = 27324553 is a prime.

It is not an unprimeable number, because it can be changed into a prime (27324511) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 621 + ... + 7418.

It is an arithmetic number, because the mean of its divisors is an integer number (2508480).

Almost surely, 2^27324561 is an apocalyptic number.

It is an amenable number.

27324561 is a deficient number, since it is larger than the sum of its proper divisors (12811119).

27324561 is a wasteful number, since it uses less digits than its factorization.

27324561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8156.

The product of its digits is 10080, while the sum is 30.

The square root of 27324561 is about 5227.2900244773. The cubic root of 27324561 is about 301.1972930521.

The spelling of 27324561 in words is "twenty-seven million, three hundred twenty-four thousand, five hundred sixty-one".