5491689 has 8 divisors (see below), whose sum is σ = 8368320. Its totient is φ = 3138096.

The previous prime is 5491657. The next prime is 5491709. The reversal of 5491689 is 9861945.

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

It is not a de Polignac number, because 5491689 - 2⁵ = 5491657 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5491689.

It is not an unprimeable number, because it can be changed into a prime (5491609) 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, 130734 + ... + 130775.

It is an arithmetic number, because the mean of its divisors is an integer number (1046040).

Almost surely, 2^5491689 is an apocalyptic number.

It is an amenable number.

5491689 is a deficient number, since it is larger than the sum of its proper divisors (2876631).

5491689 is a wasteful number, since it uses less digits than its factorization.

5491689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261519.

The product of its digits is 77760, while the sum is 42.

The square root of 5491689 is about 2343.4352988721. The cubic root of 5491689 is about 176.4284606564.

The spelling of 5491689 in words is "five million, four hundred ninety-one thousand, six hundred eighty-nine".