6419431 has 2 divisors, whose sum is σ = 6419432. Its totient is φ = 6419430.

The previous prime is 6419423. The next prime is 6419443. The reversal of 6419431 is 1349146.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6419431 - 2³ = 6419423 is a prime.

It is a super-2 number, since 2×6419431² = 82418188727522, which contains 22 as substring.

It is a Chen prime.

It is a zygodrome in base 2.

It is a self number, because there is not a number n which added to its sum of digits gives 6419431.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6419531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3209715 + 3209716.

It is an arithmetic number, because the mean of its divisors is an integer number (3209716).

Almost surely, 2^6419431 is an apocalyptic number.

6419431 is a deficient number, since it is larger than the sum of its proper divisors (1).

6419431 is an equidigital number, since it uses as much as digits as its factorization.

6419431 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2592, while the sum is 28.

The square root of 6419431 is about 2533.6596061823. The cubic root of 6419431 is about 185.8512608246.

The spelling of 6419431 in words is "six million, four hundred nineteen thousand, four hundred thirty-one".