5491421 has 8 divisors (see below), whose sum is σ = 5935104. Its totient is φ = 5050800.

The previous prime is 5491393. The next prime is 5491439. The reversal of 5491421 is 1241945.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5491421 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5491481) 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, 4196 + ... + 5346.

It is an arithmetic number, because the mean of its divisors is an integer number (741888).

Almost surely, 2^5491421 is an apocalyptic number.

It is an amenable number.

5491421 is a deficient number, since it is larger than the sum of its proper divisors (443683).

5491421 is a wasteful number, since it uses less digits than its factorization.

5491421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1531.

The product of its digits is 1440, while the sum is 26.

The square root of 5491421 is about 2343.3781171633. The cubic root of 5491421 is about 176.4255906470.

The spelling of 5491421 in words is "five million, four hundred ninety-one thousand, four hundred twenty-one".