5409491 has 4 divisors (see below), whose sum is σ = 5415432. Its totient is φ = 5403552.

The previous prime is 5409487. The next prime is 5409493. The reversal of 5409491 is 1949045.

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 is a cyclic number.

It is not a de Polignac number, because 5409491 - 2² = 5409487 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5409493) 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, 1286 + ... + 3531.

It is an arithmetic number, because the mean of its divisors is an integer number (1353858).

Almost surely, 2^5409491 is an apocalyptic number.

5409491 is a deficient number, since it is larger than the sum of its proper divisors (5941).

5409491 is a wasteful number, since it uses less digits than its factorization.

5409491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5940.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 5409491 is about 2325.8312492526. The cubic root of 5409491 is about 175.5437887720.

The spelling of 5409491 in words is "five million, four hundred nine thousand, four hundred ninety-one".