27421365 has 16 divisors (see below), whose sum is σ = 44131968. Its totient is φ = 14538816.

The previous prime is 27421363. The next prime is 27421369. The reversal of 27421365 is 56312472.

It is not a de Polignac number, because 27421365 - 2¹ = 27421363 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27421363) 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 15 ways as a sum of consecutive naturals, for example, 2689 + ... + 7878.

It is an arithmetic number, because the mean of its divisors is an integer number (2758248).

Almost surely, 2^27421365 is an apocalyptic number.

It is an amenable number.

27421365 is a deficient number, since it is larger than the sum of its proper divisors (16710603).

27421365 is a wasteful number, since it uses less digits than its factorization.

27421365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10748.

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

The square root of 27421365 is about 5236.5413203755. The cubic root of 27421365 is about 301.5525624169.

The spelling of 27421365 in words is "twenty-seven million, four hundred twenty-one thousand, three hundred sixty-five".