1909714439 has 2 divisors, whose sum is σ = 1909714440. Its totient is φ = 1909714438.

The previous prime is 1909714427. The next prime is 1909714459. The reversal of 1909714439 is 9344179091.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1909714439 - 2⁴ = 1909714423 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1909714393 and 1909714402.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1909714459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 954857219 + 954857220.

It is an arithmetic number, because the mean of its divisors is an integer number (954857220).

Almost surely, 2^1909714439 is an apocalyptic number.

1909714439 is a deficient number, since it is larger than the sum of its proper divisors (1).

1909714439 is an equidigital number, since it uses as much as digits as its factorization.

1909714439 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 244944, while the sum is 47.

The square root of 1909714439 is about 43700.2796215310. The cubic root of 1909714439 is about 1240.6696086416.

The spelling of 1909714439 in words is "one billion, nine hundred nine million, seven hundred fourteen thousand, four hundred thirty-nine".