709744019 has 2 divisors, whose sum is σ = 709744020. Its totient is φ = 709744018.

The previous prime is 709743997. The next prime is 709744037. The reversal of 709744019 is 910447907.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (910447907) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 709744019 - 2⁸ = 709743763 is a prime.

It is a super-2 number, since 2×709744019² = 1007473145012544722, which contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (709744219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 354872009 + 354872010.

It is an arithmetic number, because the mean of its divisors is an integer number (354872010).

Almost surely, 2^709744019 is an apocalyptic number.

709744019 is a deficient number, since it is larger than the sum of its proper divisors (1).

709744019 is an equidigital number, since it uses as much as digits as its factorization.

709744019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 63504, while the sum is 41.

The square root of 709744019 is about 26641.0213580486. The cubic root of 709744019 is about 892.0049145265.

The spelling of 709744019 in words is "seven hundred nine million, seven hundred forty-four thousand, nineteen".