1909359 has 8 divisors (see below), whose sum is σ = 2828720. Its totient is φ = 1272888.

The previous prime is 1909343. The next prime is 1909363. The reversal of 1909359 is 9539091.

It is not a de Polignac number, because 1909359 - 2⁴ = 1909343 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1909309) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35332 + ... + 35385.

It is an arithmetic number, because the mean of its divisors is an integer number (353590).

2^1909359 is an apocalyptic number.

1909359 is a deficient number, since it is larger than the sum of its proper divisors (919361).

1909359 is an equidigital number, since it uses as much as digits as its factorization.

1909359 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70726 (or 70720 counting only the distinct ones).

The product of its (nonzero) digits is 10935, while the sum is 36.

The square root of 1909359 is about 1381.7955709873. The cubic root of 1909359 is about 124.0592632085.

The spelling of 1909359 in words is "one million, nine hundred nine thousand, three hundred fifty-nine".