5919409 has 4 divisors (see below), whose sum is σ = 5924340. Its totient is φ = 5914480.

The previous prime is 5919377. The next prime is 5919427. The reversal of 5919409 is 9049195.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 2030625 + 3888784 = 1425^2 + 1972^2 .

It is a cyclic number.

It is not a de Polignac number, because 5919409 - 2⁵ = 5919377 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 (5919449) 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 3 ways as a sum of consecutive naturals, for example, 639 + ... + 3499.

It is an arithmetic number, because the mean of its divisors is an integer number (1481085).

Almost surely, 2^5919409 is an apocalyptic number.

It is an amenable number.

5919409 is a deficient number, since it is larger than the sum of its proper divisors (4931).

5919409 is a wasteful number, since it uses less digits than its factorization.

5919409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4930.

The product of its (nonzero) digits is 14580, while the sum is 37.

The square root of 5919409 is about 2432.9835593361. The cubic root of 5919409 is about 180.8948138879.

It can be divided in two parts, 5919 and 409, that added together give a triangular number (6328 = T₁₁₂).

The spelling of 5919409 in words is "five million, nine hundred nineteen thousand, four hundred nine".