6419 has 6 divisors (see below), whose sum is σ = 7524. Its totient is φ = 5460.

The previous prime is 6397. The next prime is 6421. The reversal of 6419 is 9146.

6419 is nontrivially palindromic in base 2.

It is not a de Polignac number, because 6419 - 2⁸ = 6163 is a prime.

It is a super-2 number, since 2×6419² = 82407122, which contains 22 as substring.

It is a Duffinian number.

It is a nialpdrome in base 9.

It is a self number, because there is not a number n which added to its sum of digits gives 6419.

It is not an unprimeable number, because it can be changed into a prime (6449) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 17 + ... + 114.

It is an arithmetic number, because the mean of its divisors is an integer number (1254).

2⁶⁴¹⁹ is an apocalyptic number.

6419 is a deficient number, since it is larger than the sum of its proper divisors (1105).

6419 is a wasteful number, since it uses less digits than its factorization.

6419 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145 (or 138 counting only the distinct ones).

The product of its digits is 216, while the sum is 20.

The square root of 6419 is about 80.1186619958. The cubic root of 6419 is about 18.5847101386.

The spelling of 6419 in words is "six thousand, four hundred nineteen".