27713643 has 16 divisors (see below), whose sum is σ = 39108096. Its totient is φ = 17420480.

The previous prime is 27713641. The next prime is 27713669. The reversal of 27713643 is 34631772.

It is a cyclic number.

It is not a de Polignac number, because 27713643 - 2¹ = 27713641 is a prime.

It is not an unprimeable number, because it can be changed into a prime (27713641) 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, 2071 + ... + 7727.

It is an arithmetic number, because the mean of its divisors is an integer number (2444256).

Almost surely, 2^27713643 is an apocalyptic number.

27713643 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

27713643 is a deficient number, since it is larger than the sum of its proper divisors (11394453).

27713643 is a wasteful number, since it uses less digits than its factorization.

27713643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5754.

The product of its digits is 21168, while the sum is 33.

The square root of 27713643 is about 5264.3748916657. The cubic root of 27713643 is about 302.6201712740.

The spelling of 27713643 in words is "twenty-seven million, seven hundred thirteen thousand, six hundred forty-three".