6780419 has 2 divisors, whose sum is σ = 6780420. Its totient is φ = 6780418.

The previous prime is 6780407. The next prime is 6780421. The reversal of 6780419 is 9140876.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6780419 is a prime.

It is a super-2 number, since 2×6780419² = 91948163631122, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 6780421, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (6780439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3390209 + 3390210.

It is an arithmetic number, because the mean of its divisors is an integer number (3390210).

Almost surely, 2^6780419 is an apocalyptic number.

6780419 is a deficient number, since it is larger than the sum of its proper divisors (1).

6780419 is an equidigital number, since it uses as much as digits as its factorization.

6780419 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 6780419 is about 2603.9237700056. The cubic root of 6780419 is about 189.2716249697.

The spelling of 6780419 in words is "six million, seven hundred eighty thousand, four hundred nineteen".