3420399559 has 2 divisors, whose sum is σ = 3420399560. Its totient is φ = 3420399558.

The previous prime is 3420399487. The next prime is 3420399583. The reversal of 3420399559 is 9559930243.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3420399559 - 2⁷ = 3420399431 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3420399659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1710199779 + 1710199780.

It is an arithmetic number, because the mean of its divisors is an integer number (1710199780).

Almost surely, 2^3420399559 is an apocalyptic number.

3420399559 is a deficient number, since it is larger than the sum of its proper divisors (1).

3420399559 is an equidigital number, since it uses as much as digits as its factorization.

3420399559 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1312200, while the sum is 49.

The square root of 3420399559 is about 58484.1821264519. The cubic root of 3420399559 is about 1506.6959258345.

The spelling of 3420399559 in words is "three billion, four hundred twenty million, three hundred ninety-nine thousand, five hundred fifty-nine".