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5478 = 231183

5478 has 16 divisors (see below), whose sum is σ = 12096. Its totient is φ = 1640.

The previous prime is 5477. The next prime is 5479. The reversal of 5478 is 8745.

It is an interprime number because it is at equal distance from previous prime (5477) and next prime (5479).

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25 + ... + 107.

It is an arithmetic number, because the mean of its divisors is an integer number (756).

25478 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5478, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6048).

5478 is an abundant number, since it is smaller than the sum of its proper divisors (6618).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5478 is a wasteful number, since it uses less digits than its factorization.

5478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99.

The product of its digits is 1120, while the sum is 24.

The square root of 5478 is about 74.0135122799. The cubic root of 5478 is about 17.6281745703.

It can be divided in two parts, 547 and 8, that added together give a palindrome (555).

The spelling of 5478 in words is "five thousand, four hundred seventy-eight".

Divisors: 1 2 3 6 11 22 33 66 83 166 249 498 913 1826 2739 5478