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1927 = 4147

1927 has 4 divisors (see below), whose sum is σ = 2016. Its totient is φ = 1840.

The previous prime is 1913. The next prime is 1931. The reversal of 1927 is 7291.

1927 is nontrivially palindromic in base 14 and base 16.

1927 is an esthetic number in base 16, because in such base its adjacent digits differ by 1.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 7291 = 23317.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1927 is a prime.

It is a Duffinian number.

1927 is an undulating number in base 14 and base 16.

It is a plaindrome in base 12.

It is a nialpdrome in base 7, base 13 and base 15.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18 + ... + 64.

It is an arithmetic number, because the mean of its divisors is an integer number (504).

1927 is a deficient number, since it is larger than the sum of its proper divisors (89).

1927 is an equidigital number, since it uses as much as digits as its factorization.

1927 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88.

The product of its digits is 126, while the sum is 19.

The square root of 1927 is about 43.8976081353. The cubic root of 1927 is about 12.4440163071. Note that the first 3 decimals are identical.

The spelling of 1927 in words is "one thousand, nine hundred twenty-seven".

Divisors: 1 41 47 1927