5478491 has 4 divisors (see below), whose sum is σ = 5483352. Its totient is φ = 5473632.

The previous prime is 5478481. The next prime is 5478497. The reversal of 5478491 is 1948745.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1948745 = 5 ⋅389749.

It is a cyclic number.

It is not a de Polignac number, because 5478491 - 2¹⁰ = 5477467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5478497) 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, 236 + ... + 3318.

It is an arithmetic number, because the mean of its divisors is an integer number (1370838).

Almost surely, 2^5478491 is an apocalyptic number.

5478491 is a deficient number, since it is larger than the sum of its proper divisors (4861).

5478491 is a wasteful number, since it uses less digits than its factorization.

5478491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4860.

The product of its digits is 40320, while the sum is 38.

The square root of 5478491 is about 2340.6176535265. The cubic root of 5478491 is about 176.2870123298.

The spelling of 5478491 in words is "five million, four hundred seventy-eight thousand, four hundred ninety-one".