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3427 = 23149

3427 has 4 divisors (see below), whose sum is σ = 3600. Its totient is φ = 3256.

The previous prime is 3413. The next prime is 3433. The reversal of 3427 is 7243.

3427 is an esthetic number in base 8, because in such base its adjacent digits differ by 1.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3427 - 27 = 3299 is a prime.

It is a Duffinian number.

3427 is a lucky number.

It is a plaindrome in base 14.

It is a nialpdrome in base 8 and base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 3427.

It is not an unprimeable number, because it can be changed into a prime (3407) 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, 52 + ... + 97.

It is an arithmetic number, because the mean of its divisors is an integer number (900).

23427 is an apocalyptic number.

3427 is a deficient number, since it is larger than the sum of its proper divisors (173).

3427 is a wasteful number, since it uses less digits than its factorization.

3427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172.

The product of its digits is 168, while the sum is 16.

The square root of 3427 is about 58.5405842130. The cubic root of 3427 is about 15.0766447422.

Adding to 3427 its sum of digits (16), we get a palindrome (3443).

The spelling of 3427 in words is "three thousand, four hundred twenty-seven", and thus it is an iban number.

Divisors: 1 23 149 3427