5491243 has 4 divisors (see below), whose sum is σ = 5496448. Its totient is φ = 5486040.

The previous prime is 5491231. The next prime is 5491259. The reversal of 5491243 is 3421945.

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 5491243 - 2²¹ = 3394091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5491223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 396 + ... + 3337.

It is an arithmetic number, because the mean of its divisors is an integer number (1374112).

Almost surely, 2^5491243 is an apocalyptic number.

5491243 is a deficient number, since it is larger than the sum of its proper divisors (5205).

5491243 is a wasteful number, since it uses less digits than its factorization.

5491243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5204.

The product of its digits is 4320, while the sum is 28.

The square root of 5491243 is about 2343.3401374960. The cubic root of 5491243 is about 176.4236843952.

The spelling of 5491243 in words is "five million, four hundred ninety-one thousand, two hundred forty-three".