719409013 has 2 divisors, whose sum is σ = 719409014. Its totient is φ = 719409012.

The previous prime is 719408981. The next prime is 719409017. The reversal of 719409013 is 310904917.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 460617444 + 258791569 = 21462^2 + 16087^2 .

It is an emirp because it is prime and its reverse (310904917) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 719409013 - 2⁵ = 719408981 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 719409013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (719409017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 359704506 + 359704507.

It is an arithmetic number, because the mean of its divisors is an integer number (359704507).

Almost surely, 2^719409013 is an apocalyptic number.

It is an amenable number.

719409013 is a deficient number, since it is larger than the sum of its proper divisors (1).

719409013 is an equidigital number, since it uses as much as digits as its factorization.

719409013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6804, while the sum is 34.

The square root of 719409013 is about 26821.8010767361. The cubic root of 719409013 is about 896.0356551533.

The spelling of 719409013 in words is "seven hundred nineteen million, four hundred nine thousand, thirteen".