5478999 has 16 divisors (see below), whose sum is σ = 7672320. Its totient is φ = 3473120.

The previous prime is 5478989. The next prime is 5479007. The reversal of 5478999 is 9998745.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 5478999 - 2¹¹ = 5476951 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5478989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5734 + ... + 6620.

It is an arithmetic number, because the mean of its divisors is an integer number (479520).

Almost surely, 2^5478999 is an apocalyptic number.

5478999 is a deficient number, since it is larger than the sum of its proper divisors (2193321).

5478999 is a wasteful number, since it uses less digits than its factorization.

5478999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 990.

The product of its digits is 816480, while the sum is 51.

The square root of 5478999 is about 2340.7261693756. The cubic root of 5478999 is about 176.2924609734.

The spelling of 5478999 in words is "five million, four hundred seventy-eight thousand, nine hundred ninety-nine".