5091609 has 8 divisors (see below), whose sum is σ = 6900352. Its totient is φ = 3338640.

The previous prime is 5091589. The next prime is 5091613. The reversal of 5091609 is 9061905.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 5091609 - 2¹¹ = 5089561 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (5091649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13729 + ... + 14094.

It is an arithmetic number, because the mean of its divisors is an integer number (862544).

Almost surely, 2^5091609 is an apocalyptic number.

It is an amenable number.

5091609 is a deficient number, since it is larger than the sum of its proper divisors (1808743).

5091609 is a wasteful number, since it uses less digits than its factorization.

5091609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27887.

The product of its (nonzero) digits is 2430, while the sum is 30.

The square root of 5091609 is about 2256.4593947155. The cubic root of 5091609 is about 172.0356087263.

The spelling of 5091609 in words is "five million, ninety-one thousand, six hundred nine".