5478689 has 4 divisors (see below), whose sum is σ = 5509140. Its totient is φ = 5448240.

The previous prime is 5478677. The next prime is 5478703. The reversal of 5478689 is 9868745.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9868745 = 5 ⋅1973749.

It can be written as a sum of positive squares in 2 ways, for example, as 1868689 + 3610000 = 1367^2 + 1900^2 .

It is a cyclic number.

It is not a de Polignac number, because 5478689 - 2⁸ = 5478433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5478589) 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, 14954 + ... + 15315.

It is an arithmetic number, because the mean of its divisors is an integer number (1377285).

Almost surely, 2^5478689 is an apocalyptic number.

It is an amenable number.

5478689 is a deficient number, since it is larger than the sum of its proper divisors (30451).

5478689 is a wasteful number, since it uses less digits than its factorization.

5478689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30450.

The product of its digits is 483840, while the sum is 47.

The square root of 5478689 is about 2340.6599496723. The cubic root of 5478689 is about 176.2891360538.

The spelling of 5478689 in words is "five million, four hundred seventy-eight thousand, six hundred eighty-nine".